Guitar effects

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Stomp boxes

Clean Boost     Treble Boost     Overdrive     Distortion     Fuzz     EQ     Tremolo     Wah     Reverb     Delay     Looper    
Phaser     Flanger     Chorus     Vibe     Compressor     A-B Switch     Loop Switch     Noise Gate     DI Box     Tuner     Pedalboard Power     Cables     DIY

Think this list of effects is long?  Try this one!

Clean Boost:   I want to try one of these or an overdrive that can do the same thing.  Are these things different enough to justify having more than one?  Better to have a combination pedal -- newest KotB, PlexiTone, Box of Rock, Switchazel, Fulldrive II*, Powerscreamer, Loopbone, X-Blender -- that offers boost along with some other function?  Resources: Tone Dogs' Clean Boost Round-Up 2007 and DonneR's Boost Pedal Reviews.
Banzai New Rising Sun II.  Two independently switchable powerful clean boosts in one case.  In serial mode, one feeds directly into the other.  In parallel mode, each has its own independent input and output jacks.  $200ish?
Barber Launch Pad, a clean booster that boasts uncolored sound and 20dB boost.  Two outputs, one can be used as a balanced DI.  $125 list.
BBE Boosta Grande, 20dB clean boost.  (HC).  $80 new. 
Behringer PB100 Preamp Booster, $20 new.  User reviews too frequently call these cheap Behringer units worthless.
Blackbox* Cobalt (2001), "a high fidelity guitar preamp* [married] to a killer overdrive."  Controls: Volume, Bias, Drive, Gain.  Very high input impedance.  Release blurb.  Reviews: OnStage, DiscoFreq and (HC).  $240 new.
Burris Boostier.  One of the most frequently-mentioned pedals in a TGP thread about Klon clones.  Described as similar to Klon's clean boost, not its overdrive sound.  (HC).  $240 new.
Catalinbread Super Chili Picoso, clean boost with "Fat" switch.  I read somewhere this is a modified Orman booster with the "Fat" made switchable.  (HC).  $156 new.
Catalinbread Serrano Picoso, "transparent" clean boost without fattening function, in a super tiny enclosure.  Up to 30dB.  $110 new.
Catalinbread Varioboost Preamplifier.  Freq. knob chooses a frequency between 70Hz - 1400Hz, 12dB knob boosts or cuts it between +/- 12dB; Gain knob provides overall volume control.  $160+ new.
Creation Audio Labs Mk 4.23 Boost.  Clean boost with many pro users.  Cool-looking chrome pedal with one knob.
Divided by 13 Lift, 9dB clean full-range boost with buffered low-Z output for $175 street.  I heard one of these with a Tele.  With the Lift knob at maybe 10:30 it was driving a Richter 5E3 hard.  Hard to believe cranked is only 9dB!
Divided by 13 Switchazel combines an A-B-Y switch and a Lift 9dB clean boost in one box with a Tuner output.  $275 street.  Too bad about the price; that would be a cool combination with my StroboStomp.
Durham Sex Drive.  Knobs: Gain, Level, Tone.  Compression switch* with "Off*/Soft*/Hard*" settings.  "Off" yields a "transparent" clean boost, adds bass and sustain and "airy glassy sheen" like a subtle Loudness control on a stereo -- a "more" pedal.  "Soft" and "Hard" add more overdrive.  Flexible and good sounding.  Sex Drive vs. Klon?.  (HC).  $220 direct or new.
Electro-Harmonix Nano LPB-1 Linear Power Booster.  E-H makes affordable mini-clones of their classic effects in small rounded aluminum cases.  The prices suggest Chinese manufacture, but this one says "Made in NYC, USA" on it.  $39 new.
Fulltone Fat-Boost (????-2007), gray-cased clean booster (up to 30dB), colors sound somewhat to make your amp sound cranked.  Two versions*.  $160 MSRP, $145 street.
Fulltone Fat-Boost Model FB-2 (2007-2009), red-sparkle-cased clean booster.  Multiple FET stages (no op-amps) yield huge clean headroom, and some compression.  Knobs: large Volume and Drive, tiny Bass and Treble.  $135 street.
Fulltone Fat-Boost Model FB-3 (2009-present), gray-sparkle-cased clean booster.  Multiple FET stages yield 35dB clean headroom, and some compression.  Knobs: large Volume and 11-stop Drive, tiny Bass and Treble.  $135 street.
Klon Centaur Professional Overdrive, $344 plus shipping.  Killer clean boost* at low gain settings.  Tuned EQ response with enhanced low-mids makes guitar sound huge.  Optimized for full-volume live band use*.  (HC).
MI Audio Boost & Buff, boost & hi-Z buffer.  Full-time high-Z input buffer with flat clean boost up till about 15dB, treble boosted from there to ~35dB max..  $105.
MXR M133 Micro-Amp, $70 new.  This has been around forever, but I've never heard one.
MXR/CAE MC-401 Boost/Linedriver.
Jack Orman's AMZ JFET mu-amp Mini-Booster is a DIY pedal design, famous for great tone and usefulness.  Orman offers plans, and an optional PCB, but most people don't build their own pedals, so other pedal makers make controversial sums of money selling complete derivative pedals.
Psionic Audio Triad includes three stages of preamp/boost; the middle stage includes a series/parallel effects loop.  Was $300 direct.  Recent attempts to view Psionic's Web site yield "site not found."
Radial Loopbone features two footswitchable effects loops, adjustable Class A VariBoost, Drag control, always-on tuner output, and a SlingShot switch.  $240 new.
Radial Switchbone combines transformer-isolated A-B-Y opti-cell switching with a Class A clean boost and Drag control.  $350 MSRP.
RGW Electronics Bad Bob Booster.  Based on Jack Orman's famous JFET mu-amp Mini-Booster design, which was also "borrowed" for the original "detent" Fulltone Fat Boost.  Class A, 20+dB boost.  $140 new.  ( HC ).
Seymour Duncan SFX01 Pickup Booster with 6-25 dB clean boost and Strat-fattening "Resonance" switch.  $76 new.
Stephenson Fix My Duck.  Clean boost with options for treble boost, full-range boost, input buffering, thickening and thinning tonal effects, and distortion at higher settings.  (HC).  $170 direct.
Toadworks Meat.  Knobs: Meat boosts lows and mids, Clean boosts mids and highs, Level boosts full range.  Meat and Clean levels can be set simultaneously, or either or both can be switched out of the circuit.  $125 new.
Toadworks Meat Jr..  Smaller boost with Level knob and Fat/Clean toggle switch.  $88 new.
Xotic RC Booster.  This offers some overdrive at higher settings, but many pros seem to use it as a clean boost.  Knobs: Gain, Treble, Volume, Bass.  (HC).  $186 new.
Xotic X-Blender.  This is a series/parallel effects loop pedal.  It offers two levels of clean boost when used in parallel mode.  $230 new.
Z.Vex Super Hard On, $200 new.  5MΩ input impedance*, very high gain*, but clean until cranked, when it distorts* as well as being "super hard on" your preamp tubes.  Some "glassy" or "bright" coloration.  (HC).  $240 new.
Z.Vex Super Duper 2-in-1, two Super Hard On circuits in one compact pedal with a master volume knob added.  Use them separately, or cascade them for more overdrive sound than SHO alone.  (HC).  $320 new.
Zinky Master Blaster clean boost*.  Volume and Tone knobs, all discrete FET circuit, true bypass footswitch.  AC/9V adapter included; works with any 9-12V AC or DC adapter regardless of polarity.  $115 MSRP; $100 street?
I'd like to hear the Klon, Boostier, Cobalt, LoopBone, X-Blender, RC Booster, Bad Bob or another Orman clone, and the Psionic Triad.  It would be cool to build an Orman booster.

Treble Boost:   Popular in the 1960s and less so since, despite the common desire to capture 1960s guitar sounds.  Could I get a similar effect using an overdrive pedal with a tone control?  Maybe, but it seems to me that many of these are a bit more complex than just a shelving high-pass EQ.  There are tuned resonances, etc., and some add overdrive/fuzz as well.  It's worth checking these out.
65 Colour Boost.  "Germanium based treble boost with 4 voicings.  Based on the best 60's Treble Boosters and evolved beyond."  $230 MSRP.
Analogman Beano Boost.  Dallas Rangemaster clone with three switchable tone ranges -- not just a treble boost.  $165 direct.
Baja Tech Baja Boost.  Germanium Rangemaster clone with extra knob to adjust voicing between stock, "Iommi mods", and "Mid-boost Mods", and all points between.  $156 new.
Baja Tech Top Boost TB-1.  Germanium Rangemaster clone with Brian May's mods for beefier tone and more overdrive.  $156 new.
BBE Freq Boost, $100.
Dallas Rangemaster.  The Dallas Rangemaster was a table-top or amp-top "treble booster" that emphasized certain frequencies that sound good with tube guitar amps and encourage crunchy amp tone.  Used on Mayall's Beano album, lots of early Zep (like The Lemon Song), and a staple with Tony Iommi, Ritchie Blackmore and Brian May.  Long out of production, these fetch ~$1000 when sold.
Díaz Texas Ranger, inspired by the Dallas Rangemaster but built in a compact Hammond-style case with a footswitch.  Three position rotary voicing switch.  $225 new.
Divided by 13 Dyna-Ranger.  Dallas Rangemaster clone with updates.  Rotary dial-a-tone control reminiscent of ÷13 "Click" control.  $175 street.
Gaspedals GasMaster.  Limited-edition one-knob Rangemaster interpretation.  These sold for $150 when they were available.
Greer Pork & Beans.  .  Germanium treble booster with "Fat" switch for classic-rock domination.  Big Mike's YouTube demo.
Homebrew Electronics Germania, $110 new.  Compact treble booster built with NOS germanium transistor and "Hi Fi/Lo Fi" voicing toggle.
Homebrew Electronics Germania44, $135 new.  Compact treble booster built with NOS Mullard OC44 germanium transistor and "Hi Fi/Lo Fi" voicing toggle.
MI Audio Boost & Buff, boost & hi-Z buffer.  Full-time high-Z input buffer with flat clean boost up till about 15dB, treble boosted from there to ~35dB max..  $105.
Phoenix Custom Electronics Ranger.  Germanium Rangemaster interpretation.  (HC).  $140+ new.
Phoenix Custom Electronics Tone Master.  Rangemaster interpretation using low-gain silicon transistors instead of germanium.  A little more bite and volume, but tonally very close.  Easier to use with Pedal Power products, less heat-sensitive than germanium.  $125+ new.
ThrōBak Electronics stRange Master.  $169 MSRP.
I'd like to hear the Colour Boost, Beano Boost, Texas Ranger, Dyna-Ranger, and stRange Master. And the knob on the V-Stack Classic that emulates the treble booster.

Overdrive:   "An overdrive box, while capable of a modest amount of distortion, is used mainly to help your amplifier create its own distortion." -- Ken Fischer, 1995.  I've noticed that some of the most famous overdrive pedals don't do this by boosting the signal as one might guess, but by introducing their own slightly "rounded" distortion tone.  The Tube Screamer and many of its clones and contemporaries seem to be unity gain devices: crank the Volume knob, and the signal level is about equal to when the effect is disengaged (note: this is true when the Drive or Gain is minimal, as I usually prefer; crank the Drive up and you can get considerably louder than unity).
Addrock (Not So) Old Yeller (NSOY).  Medium-sized TS-like overdrive with footswitchable boost.
Analogman-modded Ibanez (TS-808, TS-9, etc.), Boss, and many other pedals.  "Analog Mike" modifies effects pedals and makes some of his own.  Lots of good effects info at his Web site.
Austone Soul-O-Stomp.  Clean booster/overdrive with In and Out knobs, true bypass footswitch, LED indicatior, and battery or adapter power.  $240 new.
Banzai Cold Fusion, €245.18 new.  Like the Klon Centaur, offers a stong clean boost and "amp-like, transparent" overdrive.  The Cold Fusion's overdrive sound emphasizes more bass and treble than the mid-focused Klon's.  (HC).
Barber LTD, discontinued "low-gain overdrive" provides less-distorted boost, $120 new.
Barber LTD Silver, discontinued 2009.  Flatter mids than the standard LTD (not as flat as the SR), and a very subtle tone control for the tone purist.  TGP.
Barber LTD SR (special recipe).  Low-gain overdrive with flat frequency response but with a powerfully effective tone knob.  $140+ MSRP.
Barber LTD v2 (standard).  Low-gain overdrive that fattens and thickens tone slightly; SRV without the .013 strings.  Compared to the original LTD, v2 offers "more bass, less mids, and more open on top".  $120+ MSRP.
BBE Green Screamer.  A magazine review called this "a better Tube Screamer".  (HC); (GW says "tight, compressed, and smooth.").  $100 new.
Bennett Brown Sound.  Bruce Bennett no longer makes pedals, but the Brown Sound has been picked up by OohLaLa.  (HC).  Tone notes*.  Was $140, now $240ish; grab one for $151 new.
BJFE Baby Blue Overdrive (BBOD).
BJFE Honey Bee Overdrive (HBOD).  Touch-sensitive lower gain* overdrive.  (HC).  Demos: MusicToyz, 2guests, Drive at 10:00, Drive at 11:00, Drive at 3:00, Drive at 5:00, Donnerbox.  $335ish new; $350+ used.
BJFE Little Green Wonder (LGW).  "low compression, high headroom overdrive with high output".  Don't call it a Tube Screamer clone!  More clarity and dynamics.  (HC). 
Blackbox* Cobalt (2001), "a high fidelity guitar preamp* [married] to a killer overdrive."  Controls: Volume, Bias, Drive, Gain.  Very high input impedance.  Release blurb.  Reviews: OnStage, DiscoFreq and (HC).  $240 new.
Blackstar HT-Drive.  "Amp-like" overdrive pedal with a tube in it.
Blackstone Appliances MOSFET Overdrive 2Sv3.  Praised for amp-like lack of "fizz" and touch-sensitivity.  Four MOSFET gain stages each provide slight overdrive, like a tube amp.  Review; TGP, HC.  $225 direct.
Boss BD-2 Blues Driver (1995-present), seemed to offer more level boost and twice as much gain as an SD-1 in brief testing at Guitar Center.  $80.
Boss OD-1 Overdrive (1977-????), sells for over $100 on eBay.  This was the first stompbox in the Boss compact format that Boss pedals still use today, and the first of the popular Japanese overdrive pedals.  (HC).
Boss OD-2 Turbo Overdrive (1985-????).  The "Turbo" feature is a rotary switch (and a jack to which you can connect an external footswitch) to enable/disable a fixed-volume boost for soloing.  (HC)
Boss OD-2R Turbo Overdrive (1995-????).  I ran across a deal for one of these reissues on eBay.  My first impression is positive, but I wish the boost were adjustable.  (HC).
Boss OD-20 Drive Zone.  This is a twin-sized overdrive workstation with COSM models of many famous overdrives.  Some laud the accuracy of the Klon model.  $180 new.
Boss OD-3 Overdrive (1997-present), said on Boss' web site to have more solid bass response.  Some TGPers say this sounds much like the Fulltone OCD, but is less touch-responsive.  $90.
Boss OD-3 Overdrive, Allums modded.  I haven't yet had an opportunity to compare my Allums-modded OD-3 with a stock pedal.
Boss SD-1 Super Overdrive (1981-present), seen in EVH's 1997 pedalboard.  Gives my Mini-Plex that over-the-top edge that I don't hear from Plexi-like amps alone.  Loses some bass response, but mine was well worth $40 new in 2006.  $50 new. 
Burris Boostier.  One of the most frequently-mentioned pedals in a TGP thread about Klon clones.  Described as similar to Klon's clean boost, not its overdrive sound.  (HC).  $240 new.
Burris Boostiest.  Two separate pedals in one case: a Boostier clean boost and a more TS-like overdrive.  Six knobs, two footswitches.  (HC).  $300 new.
BYOC Overdrive.  A kit from which you build your own TS-808 clone.  Includes all parts and instructions, including for many popular mods you can choose to do.  Review. 
Cabaretlinda Silverkiss.  This is listed on Catalinbread's Web site now; not sure about the ancestry.
Carl Martin Hot Drive N Boost
Catalinbread Hyperpak Dirty Channel.  Very small box, two knobs (Volume and Drive), clean boost to quite dirty.  Some of the clips remind me of my old Distortion +.  (HC).  $125 new.
Catalinbread Silverkiss.  Ranges from clean boost to low-to-mid-gain overdrive, with three band EQ.  $177 new.
Catalinbread SuperCharged OverDrive (SCOD).  Uses cascading gain stages rather than diodes or MOSFETs.  More gain and output than most overdrives.  Doesn't clean up much from the guitar's knob.  $177 new.
Clark Gainster (big box, hand-wired by Michael Clark), flat frequency response and uncompressed overdrive sound.  Tweed-inspired and amp-like*; a unique sound and feel.  Some say this sounds better than the Barber version.  $360 MSRP.  ( HC ).
Clark Gainster (smaller box, manufactured by Barber Electronics), flat frequency response and uncompressed overdrive sound.  Tweed-inspired; more distortion than an LTD, less than a Direct Drive.  On hiatus; was $140).  ( HC ).
Clay Jones Overdrive (CJOD).  I think this is one of those boutique Tube-Screamer clones that has a mojo mystique.  They sell for crazy money, above $500.
Colorsound Overdriver, a 1960s (?) overdrive pedal with some modern clones*.  Jeff Beck used one in the 1970s.  Flexible EQ with Bass and Treble knobs, and a range of tones* from clean boost to overdrive to fuzz.  Colorsound Overdriver clones, Favorite Colorsound Overdriver clone?
Crowther Hot Cake, lauded by Ken Fischer in a 1995 Vintage Guitar review: "Trashier and harder-rocking than the Klon Centaur."  It was designed in 1976 while Paul Crowther played drums for Split Enz.  (HC)  $150.
Cusack Screamer (--> 2008) is a TS clone with emphasis on note separation and clarity, and twice the available gain of a TS.  Build.  Reviews: PGS and HC.  $150 bare metal, $175 black finish.
Cusack Screamer V2 (2008-- >) is a TS clone with emphasis on note separation and clarity, and wider gain range.  Clip Selector switch toggles between three types of diodes.  Build.  Reviews: PGS and HC.  $200 new.
Danelectro Cool Cat Transparent Overdrive.  This is widely believed to be a mass-produced clone of Paul Cochrane's Timmy overdrive.  Reviewers love the tone, but they don't sound the same to me.  It's $39 new.
DigiTech Bad Monkey.  This is one of those cheap mass-produced pedals that somehow gets a buzz.  People like the earlier USA-made ones better than the later Asian ones ($50 new).  Four knobs including two-band EQ.
Divided by 13 Joyride. Four knobs and three discrete transistors; $225 street.  Someone claimed it's inspired by the Colorsound Overdriver.
DOD 250 Overdrive Preamp, reissue of the yellow version (from the 1970s?).   This gave my ballsy Mini-Plex that Marshall ice-pick sound, but I need to work with this some more.    $40.
DOD YJM308 Preamp Overdrive (2001-present), Yngwie Malmsteen used the gray 1970s 250 that preceded the yellow one since he was a teenager.  This is supposedly a reissue of that now-collectible version of the pedal.  $50.
Durham Sex Drive.  Knobs: Gain, Level, Tone.  Compression switch* with "Off*/Soft*/Hard*" settings.  "Off" is a clean boost, "Soft" and "Hard" add more overdrive.  Flexible and good sounding.  Sex Drive vs. Klon?.  (HC).  $220 direct or new.
Durham Mucho Boosto.  Like a Sex Drive but with more active, wider-ranging tone controls, more overdrive, and more compression.  SD's Compression switch is replaced by a "Fat/Normal" switch.  $220 direct.
Durham Zia Drive.  Low compression, slight bass boost, glassy top end, conceived as adding EL84 chime to 6V6/6L6 amps.  Early-1970s Stones tones were a goal.  Somebody said the bass and treble boosts made his Mazerati sound ÷13-like.  $200 direct.
EPB SRB808+. Overdrive with boost? Or two 808s in one box?
Fairfield Barbershop overdrive.  2009's "Klon killer" at TGP; Johnny says his sounds nothing like a Klon.  No broad mid-boost thickening effect, more transparent.  Really good pedal, just nothing like a Klon.  (HC). 
FoxRox Zim.  This pedal somehow uses "personality cards" (like cell phone SIM cards?).  I've never actually seen a Zim.
Fulltone Full Drive 2, said to offer less "gain" (distortion) than cheap pedals.  $200 list.  Some say this sounds like a Tube Screamer, but better.  Two footswitches, including boost function (only works with drive engaged).
Gaspedals Carb.  Clean boost to hard rock crunch*.  Volume and Gain knobs; low-boost toggle switch.  (HC).  $225 direct.
GeekMacDaddy Geekdriver (2009).  Based on the Coloursound Overdriver.
GeekMacDaddy Geekscreamer.  Based on the classic Tube Screamer, with second footswitch for boost mode, in a medium stompbox.
Guyatone OD2, $62.   Supposedly Tube Screamer-like, but voiced with less bass cut.  No Tone control, just Level and Drive.  The baseplate is attached to the pedal housing with a rubber gasket. 
Guyatone OD2+, $90 new.  The OD-2 updated with true bypass switching and a tone control.
Hermida Zendrive.  "Dumble-esque"* fusion tones, used by scads of pros including Robben Ford and Brad Paisley.  Four knobs: Gain, Voice, Tone, Volume.  (HC and HC).  (Sound samples.)  $200 new in 2009.
Hermida Zendrive II.  The Zendrive II is based on the Zendrive circuit, but it's a different pedal that uses a preamp tube.  "Dumble-esque"?  Four knobs: Gain, Voice, Tone, Volume.  (HC and HC).  (Sound samples.)
Homebrew Electronics Powerscreamer.  Quieter than Tube Screamer, more transparent, more volume, more gain/overdrive, no mid-hump, selectable diode settings.  Two footswitches including boost function.  $155 new shipped.
Ibanez TS808 Tube Screamer (1979?-1982?).  Classic overdrive pedal with pre-EQ to cut bass (shelving at 722Hz), op-amp with diodes in the feedback loop for clipping, post-EQ high-cut (also shelving at 722Hz) to reduce harsh brightness and noise, and a tone circuit like an active treble boost/cut (according to Paul Cochrane).  All-time classic mid-boosting overdrive pedal (Analogman's TS History Page) though the Boss OD-1 was earlier to market by a year or so).  Analogman compares TS808 and TS9*.  TS808: Wow! at TGP.  Vintage TS808s command high prices used, so there are literally hundreds of boutique pedals inspired by the TS808.  Some say the current Ibanez reissues sound the same as the precious vintage ones; others seem to disagree.
Ibanez TS808 Tube Screamer reissue attempts to re-create the pedal that eBayers bid into the "strat"-osphere.  Easy battery access.  This simple diode-clipping pedal seems outrageously overpriced at $170 new. 
Ibanez TS808HW Tube Screamer hand-wired reissue (2008?).  Ibanez has a new reissue of the Tube Screamer claimed to more closely resemble the late-1970s original.  Reviews: Legendary Tones, TGP.  $350ish street.
Ibanez TS9 Tube Screamer (~1981-1985).  Early-1980s successor to the TS808.  Analogman says it's brighter and less smooth than the TS808 and says The Edge from U2 has used a TS9 for a long time.  Ted says it's not as dirty or compressed as the TS808 and many of the 1980s rockers used this with their cranked Marshalls to get their tone.  I vaguely remember Gary Moore saying in an interview he'd used one recording Corridors of Power or Victims of the Future.  I recall I bought one new, but found the gain too weak with my clean tube amp at bedroom volumes, so gave it to my brother (d'oh!).
Ibanez TS9 Tube Screamer reissue re-creates the successor to the "grail" pedal, popular in its own right but similarly overpriced at $100 new.  Easy battery access.  Reviews: Legendary Tones.
Keeley-modded Ibanez TS808, options from $200 new.  Keeley mods are popular, but I haven't seen it spelled out precisely what they do for your sound.
Keeley TS-9 Baked Mod, options from $170 new.   Keeley TS-9 Mod Plus, options from $160 new.   Keeley-modded Boss SD-1, $135 new.
Klon Centaur Professional Overdrive (gold anodized, with Centaur graphic).  This early version of the Centaur fetches $700-900 used*.  Bill Finnegan says the parts, design, and construction of the Klon haven't changed.  (HC).
Klon Centaur Professional Overdrive*, $345 new*.  Beloved for clean boost and for SRVish sounds from driven tube amps.  Full lows and low-mids at lower gain settings.  Optimized for full-volume live band use*.  Nutshell.  (HC).
Landgraff Dynamic Overdrive.  I've heard this is just a tweaked TS-style circuit.  What is it about these that leads people to sell (and presumably buy) used ones for $400-500?
Lovekraft Mojo Drive.  3-way toggle selects Crunch*, Boost*, and Vintage* modes.  Knobs: Gain, Tone, Level.  Aims at transparency; no mid-hump.  $140 in Stealth* or $175 in Deluxe*.
Lovepedal Eternity.  *  Simplified TS-like circuits.  There are many variations on the Eternity, older hand-wired ones that are beloved and expensive, and later PCB ones that are less so.  Variations listed individually.
Lovepedal Eternity ("Burst"), MSRP $290.  Like many Lovepedal designs, the Eternity comes in several variations.  The Burst has a sunburst-like finish.  I don't know how else it is different than other Eternity pedals.
Lovepedal Eternity ("E6").  Sean says, "E6 is a menace, almost a fuzz at times, brighter, thicker, LOUDER, ect..".  At least some of these have racing flame paint.
Lovepedal Eternity ("Roadhouse").  I read that the Roadhouse has lower gain than the Burst.  Many feature a solid brownish-gray finish. 
Lovepedal Eternity ("Burst, Tour Pro Build").  Lovepedal's Tour Pro Build* pedals feature a large PCB with surface mount components* and board-mounted jacks*.  The soft-touch footswitch uses a relay for true bypass.
Lovepedal LO Driver, discontinued.    Sean said: "low to mild OD with a saturation control and master volume.  very little compression."   Some say "Transparent, low-gain; very subtle."*  User reviews*.  Configuration*. 
Mad Professor Little Green Wonder, "low compression, high headroom overdrive with high output".  Don't call it a TS-clone!.  More clarity and dynamics.  $312 new.  (Review.) 
Mad Professor Sky Blue Overdrive.  Four knobs: Volume, Distort, Z, and Texture.  $338 new.
Mad Professor Sweet Honey Overdrive.  Knobs*.  Like the BJFE Honey Bee, a low-gain overdrive designed for touch sensitivity.  The overdrive character is different, in clips.  This clip has me interested!  $312+ new.
Marshall Blues Breaker (vintage).  In the 1980s or 1990s, Marshall made a line of large black-painted folded-steel pedals* including the original Blues Breaker, which is presumably aimed at Clapton/Mayall sounds.
Marshall BB-2 Bluesbreaker II, $70.   Marshall currently has a line of compact, snappy-looking pedals.  According to Marshall's Web site, with this one you can dial in either clean boost or Bluesbreaker-style overdrive.
Maxon OOD9 Organic Overdrive.  Just two knobs -- Drive and Level.  Some unconvincing clips at Maxon's site.  $195 new.
Menatone Red Snapper ("3.1", 1996-????).  Menatone's take on the TS-808 sound, low-ish gain, uncompressed, without the mid-hump.  The early hand-wired 3-knob* version is highly sought after and cloned by DIYers.
Menatone Red Snapper ("4.1" 2004).  I saw MRS-61, 04/29/2004, which has four aluminum knobs in a line across the top of a red-painted medium case.  It has a PCB inside, with flying leads.  The four-knob Snapper is less sought-after than the PTP-wired three-knob.
Menatone Red Snapper (1996-present, with changes).  Menatone's take on the TS-808 sound, low-ish gain, uncompressed, and without the mid-boost.  The current 4-knob* PCB version launched c. 2006-2007.  $180 new (2007).
Menatone Blue Collar.  The Red Snapper/TS-808 sound "with more balls" and "on steroids."  $180 new (2007).
Menatone Fish Factory (Details).  A hand-wired-era pedal containing a Red Snapper (Vol, Bite, Gain) and a Blue Collar (Gain, Tone, Vol) with separate footswitches.  9V battery clip and 9VDC input.  $300-$450 used.
MI Audio Blues Pro Overdrive (2005-present), a 'low to medium gain overdrive".  Three knobs.  $110 MSRP.
MI Audio Blue Boy Deluxe, low to medium gain overdrive with less compression.  6 knobs in a small case.  $140 MSRP.
MI Audio Tube Zone Overdrive (1995-present), deluxe overdrive with four clipping stages for more tube-like sound.  6 chromed knobs on a larger chromed case.  $190 new.
MJM Blues Devil.  People hype this as an improved Tube Screamer design.
Mojo Hand Copperhead.  Two two-knob overdrive circuits with two footswitches in one compact effect box.  (HC); Fatback demo.  $159 new.
Mojo Hand Mule.  Knobs: Level and Kick.  Said to be based on the Red Llama, which was said to be based on the Distortion +.  Demo shows D+-like trashy tone.  $150 new.
Monte Allums mod kits: TS-808/TS-9, BD-2, GE-7, etc., $20 for parts & instructions - hack it yourself.  
MXR/CAE MC402 Boost Overdrive Pedal, separate switches for clean boost and overdrive. (HC)  $140.
MXR GT-OD CSP-021, MXR's Custom Shop take on the classic green screamer.  $100 new.
MXR ZW44 Zakk Wylde Overdrive, sound samples >>> $100 new.
Nick Greer Relic Drive.  .  Greer's take on the Tube Screamer, with a 4558 chip but without the mid hump.  Big Mike's YouTube demo.
Nick Greer Tonesmuggler.  .  Big Mike's YouTube demo.
Nobels ODR-1.   Designed in Germany, manufactured in Korea, $56 or $56 new.
NOC3 FireFly, medium-gain overdrive up to distortion/fuzz levels.  Three-position mid contour switch.  $135 shipped new direct. 
NOC3 Pure Drive, a medium-sized, low-to-medium-gain overdrive with five knobs, a switch, and some socketed parts inside for tweaking.  Mix clean-boosted signal with overdriven signal for a more natural, tube-like sound.
Paul Cochrane Tim.  Paul has a MySpace page.  Popular* handmade transparent, uncolored* overdrive.  Tim has six knobs* and its own effects loop in a medium stomp case.  (HC) and (HC). 
Paul Cochrane Timmy.  Paul has a MySpace page.  Popular* handmade transparent, uncolored* overdrive.  Timmy has four knobs* on a compact case.  (HC).
Pedalworx Cactus Crunch.
Pedalworx Tejas.  Like a Tube Screamer, but with an extra gain stage and Spice control that make it more dynamic and responsive, less compressed.  $150 new.
Pedalworx Texas Two-Step, $200 new.  Drive, Tone, and Level controls; three-way compression switch*, and an extra footswitch for a "Boost" function*.  Without Boost, the TTS has lots of bass*.  (HC and HC).
Pharaoh Amplification Rodeo Drive 2. 
Prescription Electronics RxOverdriver.  A modern take on the Colorsound Overdriver.  Flexible EQ with Bass and Treble knobs; variety of tones from clean through overdrive to fuzz.  $175 new.
Proanalog Dual Drive.  Dual-channel Tube-Screamer-like(?) overdrive.
Proanalog Power Boost.  Another pedal inspired by the Colorsound Overdriver and featuring two-band EQ controls.
Rocktron Austin Gold.  Overdrive pedal with knobs for Level, Drive, and Pre-Bass (boost or cut bass frequencies to gain fullness or lose mud).  Large gold-anodized aluminum box.  LED, 9VDC input.  $70 new.
Skreddy Screw Driver.  Well-regarded "versatile low to medium gain overdrive*" said to be based on discrete transistors rather than op-amp(s).  $200 new with 2-month build time.
Smart People Factory Green Line overdrive pedal.
Stephenson Fix My Duck.  Clean boost with options for treble boost, full-range boost, input buffering, thickening and thinning tonal effects, and distortion at higher settings.  (HC).  $170 direct.
SubDecay Liquid Sunshine.  Popular JFET-based overdrive made in Dundee, Oregon, but the clips on the site don't do much for me.  ( HC ).  $160 new.
T-Rex Møller (2003).  Overdrive with independent clean boost.  Two footswitches*, five knobs*, Voice switch.  (HC).  $280 new
T-Rex Mudhoney.  This seems to be a well-known pedal.  "Tweedy overdrive with a pushbutton on top for added fuzz."  $200 new.
TAE YATS (2008) is a simplified TS-inspired design* based on and claimed to sound like the Clay Jones Overdrive pedal.  This is sold by Deaj of TAE, who has open-sourced the schematic*.  See info, clips.
tc electronic Vintage Distortion.  This is said to be a repackaging of the circuit in the T-Rex Mudhoney.
TC Jauernig Diabolical Gristle Tone Manipulator (DGTM).  An overdrive with a reputation.  Knobs: Gristle, Tone, Gravy.  $140ish used.
Telenordia TA-100.
ThrōBak Electronics Overdrive/Boost.  Another pedal inspired by the Colorsound Overdriver and featuring two-band EQ controls.  $219 MSRP.
Tone Freak Abunai 2.  "Classic overdrive circuit tweaked for higher gain.  Mini-toggle selects symmetrical clip, asymmetrical clip, or no clip.  Sound samples have tasty 1980s rock tone.  $200 new.
Tone Freak Naked Overdrive.  Designed by Rack Systems' Dave Friedman, tweaked and built by Tone Freak, it's a lower gain overdrive that adds the right tone to a cranked tube amp. 
Tonefactor Copperhead.  Two simple 2-knob (Drive, Level) overdrive circuits stacked in one box.  Separate footswitches.  See "Mojo Hand Copperhead".
Tube Depot The Button Tube Overdrive.  AC-powered stompbox with 254V 12AX7 tube-based overdrive circuit.  $250 new.
Visual Sound Route 66 American Overdrive: a three-knob overdrive and a three-knob compressor in the same oversized case.  The overdrive is intended and claimed to sound just like the original TS808 Tube Screamer.  $140 new.
Voodoo Lab Sparkle Drive, $130.  "Clean" control adds clean signal back into output.
Way Huge WHE201 Pork Loin Soft Clip Injection (2008- ).  Dunlop/Way Huge* pedal mixes "modern soft-clip overdrive" and "clean British preamp" circuits.  Five external and three internal knobs provide huge flexibility.  (HC).  $170 new.
Way Huge* Red Llama (1990s).    (HC) reviewer claims the Red Llama is an "enhanced" clone of the early-1970s script-logo MXR Distortion +; demo shows D+-like trashy tone.
Way Huge* Green Rhino (1990s).  1990s overdrive pedal that got very popular*, especially after production ceased.  (HC) reviewers say it's a better, clearer-sounding, true-bypass TS.
Xotic RC Booster.  This offers some overdrive at higher settings, but many pros seem to use it as a clean boost.  Knobs: Gain, Treble, Volume, Bass.  (HC).  $186 new.
Xotic AC Booster, "transparent clean boost/overdrive".  Mine is compressed-sounding like a Tube Screamer.  (HC).  $186 new.
Xotic AC Plus (2008).  A two-channel AC Preamp.  Channel A sounds like an AC Booster (controls*); Channel B is a clean boost with slight gain like RC Booster (controls*).  Switch chooses A into B or B into A.  (HC).  $250 new.
Zeek X2.
Zoom PD-01 Power Driver overdrive.  Discontinued overdrive said to be a clone of the Klon Centaur; others claim it's a clone of the Colorsound Overdriver.  As with Klon, most seem to use it as a clean boost * .
I'd like to hear the Tim, Timmy, Honey Bee, MP SHOD, Joyride, Red Snapper, LTD, an unmodded OD-1, TS808, TS9, Hotcake, Powerscreamer, LDO, Screw Driver, Mudhoney, CJOD, KoT v4, SCOD, and FullDrive II.  Or whatever seems like a good deal at the time.  TGP threads: Top 3 Overdrive Pedals?, Which OD are based on a TS circuiit?, Best Tube Screamer type pedal, The Best Tube Screamer, The Tube Screamer Geneaology Thread. 
Certain overdrives are venerated as the best: Klon Centaur, Landgraff Dynamic Overdrive, Lovepedal Eternity, Tim/Timmy, Analogman King of Tone, Lovepedal COT50, Hermida Zendrive, BJFE Honey Bee . . .

Distortion:   "A distortion box is a unit that is capable of providing all the distortion you require with no help at all from your amplifier." -- Ken Fischer, 1995
Analogman King of Tone v1: popular OD/distortion pedal.  One guy claims it's based on the Marshall Bluesbreaker circuit, but doesn't say which generation.  Didn't Analog.man say it's kind of like two TS-808s in one case?
Analogman King of Tone v4 (2003-present): a popular OD/distortion pedal.  There is a backlog of about a year for the current "v4".  One guy claims it's based on the Marshall Bluesbreaker circuit, but doesn't say which generation.
Barber Burn Unit EQ.  "Blurs the lines between overdrive and distortion."  "Lots of character" (i.e., not "transparent").  Two channels, six knobs including EQ.  $225 new.
Barber Burn Unit EL.  "Blurs the lines between overdrive and distortion."  "Lots of character" (i.e., not "transparent").  Two channels, six knobs including EQ with an Effects Loop.  $260 new.
Barber Direct Drive offers lots of bass response and drive levels from TS-808ish to Dumble-esque.  Works on 9-18V DC.   Not sure whether to call it an overdrive or a distortion, but mine sounds great.   (HC).  $120 new.
Barber Small Fry.  A single-channel Burn Unit that has evolved its own features.  $150 new.
Barber Tone Pump EQ.  Not sure where this falls in the spectrum of OD/dist/fuzz, but it's said to be "transparent". Two channels, six knobs including EQ.  $225 new.
Barber Tone Pump EL.  Not sure where this falls in the spectrum of OD/dist/fuzz, but it's said to be "transparent". Two channels, six knobs including EQ with an Effects Loop.  $225 new.
Behringer DM100 Distortion Modeler, $20 new.  Switch between emulations of DS-1, D+, and Rat.  User reviews consistently call these cheap Behringer units worthless.
Blackstar HT-Dual pedal.  Two-channel distortion box with a 12AX7, but some say the distortion comes from a series of solid-state diodes.  Channels are "Clean to Crunch" and "Super Crunch to Screaming Lead".  (HC).  $200.
Boss DS-1 Distortion, introduced in 1978 and used by George Lynch on early Dokken records, $40 new.
Boss OS-2 Overdrive/Distortion (1990-present), $70 new.
B.Y.O.C. Shredder (2007) is a clone of the Marshall Shredmaster (don't know whether original or reissue). 
Carl Martin PlexiTone, 20dB clean boost / plexi overdrive / high gain solo mode.  User reviews say this has lots of distortion and turns a clean amp* into a roaring stack.  AC-powered.  (manual).  (HC).  $210.
Catalinbread Dirty Little Secret (2009).  A lower gain distortion intended to make a Fendery clean amp sound and respond to player touch and other pedals like a plexi.  Note.  (TGP).  $165 new.
CMATMODS Brownie, a version of DIYPedalGuy's BSIAB2 circuit.  This and the Crunchbox were most mentioned in the VH in a box? thread on TGP.  $140 direct, shipped.
Custom Tones Ethos Classic.  Complex pedal that emulates the circuitry of a 1980s Dumble Overdrive Special.  Switchable outputs for use with an amp or direct recording/PA, and switchable speaker emulation.  Large box with lots of knobs; around $400 new.  History.
Custom Tones Ethos TLE.  Complex pedal that emulates the circuitry of a Dumble Overdrive Special, with switchable outputs for use with an amp or direct recording/PA, and switchable speaker emulation.  Large box with lots of knobs; around $400 new.  History.
Damage Control Womanizer (2004).  A distortion box/preamp/direct recording preamp with two 12AX7 tubes.  From clean through "brown sound", aimed at classic rockers.  1x12 combo cabinet modeling.  ( GP , HC ).  $300.
Danelectro Daddy-O.  Claimed to be a very similar circuit to the 1989 Marshall Guv'nor.
Danelectro Cool Cat Drive.  This is widely believed to be a mass-produced clone of the Fulltone OCD v1.  Close, but no cigar..  $40 new.
DIYPedalGuy's BSIAB2 (Brown Sound in a Box II), a DIY "cranked Marshall" pedal.  Said to be inspired by Jack Orman's "Mini Tubes" design.  DIY from schematics, or buy a kit for $60 plus shipping.
Emma ReezaFRATzits.  (HC). 
First Act V-Stack Classic guitar preamp.  Analog amp modeling "like SansAmp*".  Generic "British" sound modeled after a Vox with a treble booster, but said to sound like a plexi.  Intended for DI/recording*.  (HC).  $200.
First Act V-Stack Tweedy guitar preamp.  Analog amp modeling "like SansAmp*".  Generic "tweed" sound modeled after 1950s Fenders.  Intended for DI/recording, not as an effects pedal into a guitar amp.  $200.
First Act V-Stack BHM guitar preamp.  Analog amp modeling "like SansAmp*".  Sound modeled after Brian May's Vox-with-treble-booster.  Intended for DI/recording, not as an effects pedal into a guitar amp.  $200.
Freakshow Brown Rabbit    "  Freakshow Effects has taken the basic design of the original rat pedal and given it some unique and useful tonal options . . ."     $165 new.
Fulltone OCD v1 (2004 or 2005 - 2006?).  Sound samples are good, and Guitar Player liked it.  Works on 9-18V DC.  It was $180 list / $164 street.  (HC)
Fulltone OCD v3 (2007-present).  Shortly after the release of version 3 in early 2007, the price declined to $159 list / $144 street.  (HC)
Fulltone Distortion Pro.  Seems to be about $180 street.
Fulltone GT-500.  Distortion and Booster, each with own switch, EQ, Volume, and Drive controls.  The order of the sections is switchable.  Not a diode clipper; uses several FET amp stages like an amp.  Guitar Player Editor's Pick.  $203 street.
GeekMacDaddy British Ball Breaker (2008).  A "cranked Marshall" in a medium stompbox.  Knobs: Volume, Presence, Tone, Dist.  Links: TGP, TGP, TGP.  $205 new.
GGG MGV.  This is a DIY kit, not an assembled pedal, based on the 1989 Marshall Guv'nor pedal.  $60 plus shipping.
Gjika Mini-Amp, an out-of-production 1-Watt tube amp that can be used in front of a larger amp as a distortion pedal.  This thing has a good reputation.
Greer Ghetto Stomp.  I heard a clip of this that sounded a lot like Neil Young's cranked 5E3 tone, although this maybe has more bass.  (HC).  $145 new.
HAO Rumble Mod, someone described this as HAO's take on the Dumble™ sound.  $200 or $225ish new.
HAO Rust Driver, Japanese attempt to cram a Plexi into a stomp box.  Just one knob (Level) and a Bright/Normal/Warm switch.  The amount of distortion effect is fixed at what HAO thinks is a cranked-Marshall level.  $128 new. (HC).
HAO Sole Pressure, Japanese attempt to cram a '59 Bassman into a stomp box.  One guy said he couldn't tell the Sole Pressure and the Rust Driver apart.  $130 new (HC).
Hermida Mosferatu, ZZ Top slide tones, $180 plus shipping direct.  (Sound samples.)
Himmelstrutz Fetto.  Review: Swedish pedal in the BJF/MP DRD camp: high-gain Marshall with a hint of Rat.  Revision history.  Review.  $300 new.
Hughes & Kettner Tube Factor, $300 new.
Ibanez MS-10 Metal Charger (1980s), cheap ugly '80s-gain pedal known as "the poor man's Shredmaster."  Around $45 on eBay.
Indyguitarist/Wampler Plexidrive, "plexi/JTM45"* tone in a medium stompbox with a boost function.  $200 MSRP.
Indyguitarist/Wampler Plextortion, "JCM800 tones"* in a medium stompbox with a boost function.  $200 MSRP.
Indyguitarist/Wampler Pinnacle II, high-gain Marshall tone centered around EVH "brown" in a medium stompbox with an "OD/dist" switch (two modes).  $200 MSRP.
Indyguitarist/Wampler Ecstacy, high-gain rock/metal distortion.
Jetter Gain Stage Black (10/2007).  This was the third Jetter Gain Stage design, inspired by the 1969 100W plexi, unmodified.  Works best with a cranked amp, but users complained it didn't sound good in their bedrooms, so Jeter replaced it with the GS Purple in 2008.  $230 new.
Jetter Gain Stage Blue.   This was the original Jetter Gain Stage design.  Clips sound like Eric Johnson fuzz-into-plexi violin tone.  "Plexi singing lead tone."  Requires a cranked amp to sound best.  $230 new.
Jetter Gain Stage Red.  The second Jetter Gain Stage design, aims at Carlton/Ford Dumble™-inspired tones.  $230 new.
Jetter Gain Stage Purple.  Jetter's 2008+ "plexi in a box" for blackface-ish clean amps.  Presumably works better at low volumes than the GS Black did?  $200 new.
Jetter Gain Stage Green.  Despite the color, not a TS clone, but a higher-gain "hot-rodded" plexi pedal with Jetter virtues.  $200 new.
Jetter GS3.  Two cascading channels; CH. 1 is a clean boost / low-gain transparent overdrive, and CH. 2 is a higher-gain Plexi-sounding thing.  Is it a Red and a Purple in one box?  $290 new.
Landgraff Mo'D.  Clip makes this out to be a nice plexi-in-box, with unsaturated Boys are Back in Town tone.
Lovepedal 22.  Discontinued.  Harmony Central has no reviews of the "22".  The LovePedal site links from the Death of a Vox page to a Fatback Demo of the 22, so it was probably an early version of the DoaV.
Lovepedal 200 Pounds of Tone.  (12/2007*).  "This unit is by all means a classic silicon fuzz BUT it provides that elusive 200lb violin tone commonly associated with Eric Johnson's fuzz tone."  Three knobs*, LED and 9V jack.  $170 new.
Lovepedal "Angus" 45.  Discontinued pedal intended to sound like Angus Young's JTM-45, "the best rock guitar sound ever."  ( HC ).
Lovepedal Balance Ultimate Preamp.  One knob: "Volume".  "Transparent clean boost, or with the volume pushed higher it is capable of pushing any amp."  An HC reviewer calls it "more of a dirty, fuzzy distortion."  $180 new.
Lovepedal Black Magic, discontinued high-gain distortion pedal has a Volume knob and a knob that affects both EQ and distortion (is that Lovepedal's "Intense" knob?).  The EQ is dark (Strat/blackface-optimized?)* and a bit strange, but the pedal is amazingly good at adjusting from vintage Zep to EVH gain levels with the guitar's volume knob.
Lovepedal COT50 "Church of Tone Plexi Pro pedal".  One knob: "Bias".  Plexi tones controlled from guitar volume knob.  Sound samples at Web site.  ( HC - Strat/blackface users praise Wind Cries Mary tones.)  Review.  $230 MSRP.  Perhaps Sean, like Mike Zaite, builds lots of variants of his products and enjoys repeat sales from enthusiastic customers wanting to try all the flavors.
Lovepedal COT50 "Church of Tone Plexi Pro pedal", "Red LED" variant.  Has the single "Bias" knob?  Someone said this one uses the LED to set the bias, and has a more aggressive sound.
Lovepedal COT50 "Church of Tone Plexi Pro pedal", "Little China" variant.  Has the single "Bias" knob? Someone said this is a much higher gain version.
Lovepedal COT50 "Church of Tone Plexi Pro pedal", "Gold" high-gain variant.  Adds Volume and Tone knobs for a little more flexibility than the Little China.
Lovepedal COT50 "Tour Pro Build".  Aggressive tone * .  Single Bias knob and 9VDC input jack are standard.  Pedal now based on SMT PCB.  $230 MSRP.
Lovepedal Death of a Vox.  "The sound of a Vox on 12."  "Limited build".  Some of them have two knobs and some have three.  ( HC ).  $225 MSRP.
Lovepedal FAB 50.  Discontinued.  Chris Cultreri says: "a one knob pre amp that would do a very amp-like cranked vintage Marshall sound to edgy fuzz with one simple control."  ( HC ).
Lovepedal Firestarter.  Out of production, this has been compared to a Purple Plexi with a Tone control in the middle (instead of the "input filter control"), or to a COT Gold ("a high gain distortion box, goes from clean to mean"). 
Lovepdal Magneto.  This was the prototype/early version of Lovepedal's Death of a Vox "Vox cranked to 12 in a pedal."  No knobs, just a footswitch; adjust gain with guitar volume knob. 
Lovepedal Mini-V.  Seen only in a classified ad at TGP, described as "basically a COT with more low end and a fuller tone - $135."  There is a picture, which shows a white one-knob Lovepedal "Tour Pro" style pedal.
Lovepedal Provalve (2008- ).  Medium stomp with knobs for Volume, Tone, Gain A, and Gain B, and switches for Bypass and A/B.  Switch between two different gain levels (neither is a clean boost) in what is said to be a generally Marshall-esque tone universe.  Tour Pro style design.  $214 new.
Lovepedal Purple Plexi 100.  Discontinued.  Very smooth sounding plexi pedal.  Controls on mine are unmarked, but some others are marked: "Volume", "Input Filter", "Intense".  Cool plexi simulator!  $380 MSRP.
Lovepedal Purple Plexi (SMT, 2009).  In mid-2009, Lovepeal put out a SMT "Tour Pro" version of the Purple Plexi 100.  The clips at PGS sound fuzzier than my old hand-wired PP100; I should compare them.  $200 new.
Lovepedal Purple Plexi 800.  This is a higher-gain "exaggeration" of the Purple Plexi intended to yield 1980s metal tones; the clip on the Web site is Unchained.  I got on the waiting list and bought new.  $240 new.
Lovepedal Super 6
Lovepedal Twin Sixty
Lovepdal Woodrow.  Lovepedal's "cranked 5E3 Deluxe in a pedal."  One knob ("Bias", when marked) and a footswitch; adjust gain with guitar volume knob.  Sounds more like a JTM45?*.  (HC).  $190 new.
Lovepdal Woodrow II.  Lovepedal's "cranked 5E3 Deluxe in a pedal."  Gain and Level knobs and a footswitch; adjust gain with guitar volume knob also.
Lovepdal Woody.  This was the early version of Lovepedal's "cranked 5E3 Deluxe in a pedal."  No knobs, just a footswitch; adjust gain with guitar volume knob.  ( HC ).
Lovepdal Woodrow Classic (2007).  "Cranked 5E3 tweed" returns to the Woodrow configuration: one knob ("Bias", usually unlabeled) and a footswitch; adjust gain with guitar volume knob.  SMT PCB model.  ( HC ).  $115 new direct.
Mad Professor Mighty Red Distortion, "80's style compressed gain sounds", $312 new.
Marshall Drivemaster (1989?).  (HC, FAQ. 
Marshall Guv'nor (1989).  In the 1980s or 1990s, Marshall made a line of large black-painted folded-steel pedals*.  Made only in 1989, the Guv'nor was their take on the standard-voiced distortion pedal.  Some people think this one sounds really good.  GGG repro kit.  The Danelectro Daddy-O is supposedly a very similar circuit.
Marshall GV-2 Guv'nor, $70 new, Marshall's take on the standard-voiced distortion pedal.  The newer Marshall pedals are compact and sleek.
Marshall JH-1 Jackhammer, $70 new, an "extreme gain" nu-metal pedal.
Marshall Shredmaster.  In the 1980s or 1990s, Marshall made a line of large black-painted folded-steel pedals* including the Shredmaster, which some people love and some famous guitarists use.  Discontinued, then later reissued*.  Both versions pull some dollars on eBay.
Menatone Howie ("5.1", 2000-200?).  Menatone's take on the Dumble™ sound.  Five knobs (Gain, Bass, Mid, Treble, Vol) and one footswitch; no Boost function.  ~$200 used.
Menatone Howie ("6.2", discontinued).  Menatone's second-generation take on the Dumble™ sound.  Six knobs, including Boost with a second footswitch.
Menatone Howie (III, "7.2", 2007).  Emulates both channels of the Dumble™, with two footswitches, seven knobs, and a toggle switch.  Now PCB-based.  $300 new.
Menatone Kar Krash (point-to-point version, only 100 were made).  Trainwreck™-style clean-to-mean in a stomp pedal?  I've seen used Kar Krash pedals sell on eBay for $383 and $420*.
Menatone Kar Krash (2008).  PCB-based reissue.  Knobs: Bass, Middle, Treble, Presence, Gain, Volume, Cut.  Footswitches: Bypass and Fast/Gradual*.  Toggle: Crash/Wrecked*.  Notes.  Worth the $350 new.
Menatone King of the Britains ("4.1").  Menatone's "cranked Plexi in a pedal" has gone through many incarnations.  I saw a picture of a hand-wired 4-knob version (Gain, Bass, Treble, Master).
Menatone King of the Britains ("5.1", dates*).  Menatone's "cranked Plexi in a pedal", hand-wired five-knob (Vol, Bass, Mid, Treble, Gain) version.  I've seen examples dated 07/25/00, 06/05/2002, and 06/04.
Menatone King of the Britains ("6.1").  Menatone's "cranked Plexi in a pedal" has gone through many incarnations.  My hand-wired third-generation model has six knobs and no boost switch, but it sounds killer.
Menatone King of the Britains ("7.2", 2007).  PCB-based redesign with 7 knobs* including adjustable boost with a second footswitch.  New "Voice" switch selects Normal, Brilliant, or Jumped channels.  Identification?*.  $250 new (2007).
Menatone King of the Britains ("Version 3", 09/2008).  Menatone's PCB "cranked Plexi in a pedal" with 7 knobs*, adjustable boost option*, and Voice switch*.  Identification?*.  (HC).  $265 new (2008).
Menatone Ms Foxy Brown ("3.1", 2001).  Inspired by the Marshall 18-Watt.  I've seen a handwired 3.1 version made 6/12/2001 that appeared to have serial number 001. 
Menatone Ms Foxy Brown.  Inspired by the Marshall 18-Watt.  Four knobs on a narrow pedal.  Now PCB-based.  $180 new (2007).
Menatone Top Boost In A Can (earlier versions).  I've seen a 4.1 version dated 3-5-01.  I think there was a 5.1 version.  Inspired by the Vox AC30 Top Boost models. 
Menatone Top Boost In A Can ("8.2", 2007).  Inspired by the Vox AC30 Top Boost models.  Eight knobs including adjustable boost with second footswitch.  Now PCB-based.  $250 new (2007).
Menatone Workingman's Blue ("5.1", 2003).  Inspired by the Marshall JTM45 Blues Breaker.  Like many of Brian Mena's pedals, this one has evolved.  Mine is an older hand-wired version with five knobs and one switch.
Menatone Workingman's Blue ("8.2", 2007).  Inspired by the Marshall JTM45 Blues Breaker.  Eight knobs* including adjustable boost with second footswitch.  Now PCB-based.  Identification?*.  $250 new (2007).
Menatone Workingman's Blue ("8.2", 2008).  Inspired by the Marshall JTM45 Blues Breaker.  Eight knobs* including adjustable boost with second footswitch.  Now PCB-based.  Identification?*.  $270 new (2008).
Menatone/Fargen VOS.  Brian Mena's take on the high gain channel of the Fargen VOS amp.  Eight knobs including adjustable boost with second footswitch.  Now PCB-based.  $325 new (2007).
MI Audio Crunch Box (2006-present), "a pedal which captures the huge crunch of a Marshall on steroids."  Mentioned in "VH in a box" threads on TGP and HC.  $110.
MI Audio Tube Zone (1995-present).  Very cool-looking chromed medium-size 6-knob stomp box.  $190 new.
MXR M104 Distortion +   I got sick of my 1970s model paired with the 1976 Marshall model 1959 Mk II Super Lead I had, but I should listen to it with my new amps.  $60 new.
Nady TD-1 Tube Distortion Pedal.  An ad implies it's a reissue of the 1980s Chandler Tube Driver.  Sound clip unimpressive.  $130 new (2007).
Nick Greer Batch O' Ass II.  Clean boost to mean, aggressive high-gain distortion.  Knobs for Volume and Gain.  Big Mike likened the tone to an early Mesa Dual Rectifier.  Around $150 new.
Prescription Electronics Germ.  The Web site calls this a distortion, but it might be more of a germanium clean-to-fuzzy boost.  I'd like to hear one.
ProCo Rat, used by lots of 1980s hair bands like Ratt.  This original has been replaced by the Rat 2 and is now fairly sought-after.  There have been many incarnations of the RAT, according to this history page.
ProCo Rat 2, replaced the 1980s Rat.  The Rat 2 reputedly has different design and sound than the "vintage" Rat, though the Web site says it's the "classic" Rat sound.
Radial ToneBone Classic, tube-based OD/distortion praised by Eric Johnson.  $190 or $190 new.
Radial ToneBone Tri-Mode uses tube(s), offers overdrive and distortion modes.  Praised by Steve Lukather.  Sounded cool when I heard one through a Fender Vibro King. This is like a two-channel Classic. $250 or $250 new.
Radial ToneBone Hot British, "plexi in a box" tube-based OD/distortion, uses the tube to warm the sound but a solid-state drive section.  $190 or $190 new.
Radial ToneBone Plexitube, like a two-channel Hot British. $250 or $250 new.
Radial ToneBone Bones London Dual Distortion.  Details*.  This is an all-solid-state variant of the Tonebone Hot British.  Toggle between two separate Volume knobs with a second footswitch, for a lead boost.  $160 new.
Radial ToneBone Bones Hollywood Dual Distortion.  Details*.  This is an all-solid-state variant of the Tonebone Classic.  Toggle between two separate Volume knobs with a second footswitch, for a lead boost.  $160 new.
Radial ToneBone Bones Texas Dual Overdrive.  Details*.  This all-solid-state pedal goes from TS9 to higher gain.  Toggle between two separate Volume/Tone circuits with a second footswitch, for a lead boost.  $160 new.
Rocktron Silver Dragon tube distortion pedal.  One footswitch for a 12AX7-based circuit and another for a solid-state circuit; use one or both.  $130 new (2007).
Seymour Duncan SFX02 Tweak Fuzz, multi-voiced distortion box. $100  
Seymour Duncan SFX03 Twin Tube Classic, a two-channel guitar preamp built into a stomp box.  This uses the 6021 subminiature vacuum tubes designed for use in ballistic missiles.  $220 new.  
Seymour Duncan SFX04 Metal Mayhem, a ripping high gain two-channel guitar preamp built into a stomp box.  This uses the 6021 subminiature vacuum tubes designed for use in ballistic missiles.  $220 new.
Skreddy Top Fuel "strikes a balance between high gain, sustaining distortion and articulation."  $200 new with two month build time.
Smart People Factory Red Threat.  High-gain distortion.  (HC). 
Snarling Dogs Black Dog Plexi-ish overdrive/distortion.  Exaggerated bass boost to emulate that 4x12 stack sound on smaller amps; nice alternative to Tube Screamer bass-cut pedals.  Was $60; discontinued.  (HC).
Stephenson Stagehog.  A one-Watt all-tube amplifier that can double as a distortion pedal in front of a larger amp.  "Tweed" and "plexi" voicings.  $800 MSRP.
SubDecay BlackStar heavy distortion for hard rock and metal players.  ( HC ).  $165 new.
SubDecay Stupid Box.  Big, fat '70s hard rock sound for loud clean amps.  Thick, meaty, medium-gain roar.  ( HC ).  $145 new (video at ProGuitar).
Tech 21 SansAmp (original), mid-1980s (?) direct-recording device with flexible distortion modes.
Tech 21 SansAmp Classic, reissue of the original SansAmp direct-recording device.  $245 new.
Tech 21 SansAmp GT2, $190 new.
Tech21 SansAmp Character Series Blonde pedal.  Stomp box analog modeler emulates various Fender tones.  "Gain" knob offers way more distortion than most Fender amps.  $150/$150 new.
Tech21 SansAmp Character Series British pedal.  Stomp box analog modeler emulates various Marshall tones.  $150/$150 each, new.
Tech21 SansAmp Character Series California pedal.  Stomp box analog modeler emulates various Mesa/Boogie tones.  $150/$150 each, new.
Tech21 SansAmp Character Series Liverpool pedal.  Stomp box analog modeler emulates various Vox tones.  Demo video is impressive.  $150/$150 each, new.
Tech21 SansAmp Character Series VT Bass pedal.  Stomp box analog modeler emulates various Ampeg bass amp tones.  $150/$150 each, new.
Toadworks Lil' Leo American Overdrive: like a blackface Fender on 11.  $140 new.
Toadworks John Bull Jr. British Overdrive: Smaller two-knob Vox/Marshall distortion.  $95 new.
Toadworks John Bull British Overdrive: Vox/Marshall distortion.  $135 new.
Toadworks Mr. Ed Distortion: a pedal aimed at Van Halen's "brown sound."  Unfortunately, the sound clips online sound a lot like my late-1970s MXR Distortion +.  $120 new.
Toadworks Death Rattle Dual Overdrive + Boost: one switch activates or bypasses the effect, one switch selects between tweed Fender and Marshall Plexi emulations, and one switch engages a boost function.  $265 new.
Tone Freak Rodentia.  Tweaked Rat circuit.
Way Huge WHE301 Fat Sandwich Harmonic Saturator (2008- ).  Dunlop/Way Huge multi-stage clipping circuit in medium stomp.  External knobs for Volume, Tone, Distortion, Presence, and Resonance.  Internal controls: Curve and Sustain.  $180 new.
Xotic BB Preamp, "BB" for "Blues Breakers"?  JTM45 in a box?  (HC).  $190 new.
Xotic BB Plus (2008).  A two-channel BB Preamp.  Channel A is an open combo sound (controls*); Channel B is a thumpier stack sound (controls*).  Switch toggles A into B or B into A.  (HC).  $250 new.
Z.Vex Box of Metal, Z.Vex take on aggressive high-gain tone plus footswitchable noise gate, $300 ("USA Vexter" metal-etched version) or $350 (hand-painted version).  ( HC) and (HC).
Z.Vex Box of Rock (2006-present), Z.Vex take on JTM45 tone plus footswitchable clean boost, $200 ("Vexter" screen-printed version) or $300 (hand-painted version).  $200   (HC) and (HC).
I'd like to hear the Rat, V-Stack Classic, BB Preamp, Dirty Little Secret, Fetto, Mosferatu, OCD v3+, Rumble Mod, GT-500, Stupid Box, Tonebone Classic & Hot British, Duncan Twin Tube, Brown Rabbit, Keeley Rat, Kar Krash, Shredmaster/Shredder.  Or whatever seems like a good idea at the time.
Of what I've heard, my favorites so far have been the Barber Direct Drive, Menatone KotB (6.1 version), Lovepedal Purple Plexi 100, and ZVex BoR.

Fuzz is a category I've never adequately considered because I thought of it as being Revolution by the Beattles, or the Big Muff π, or Hendrix' excesses.  Well, those can actually be cool -- but fuzz is also a more tastefully-applied effect added to a cranking tube amp to yield tones like Cary on, Wayward Son or Hendrix' tasty stuff. 
Addrock Germanium
Analogman Sunface NKT 275 germanium fuzz.  Two knobs.  $235 new.
Aramaat Mojo Fuzz.
Arbiter/Dallas-Arbiter Fuzz Face, used by Jimi Hendrix on his first two releases, is the template for lots of modern boutique fuzz pedals.  Mike Fuller says without the old germanium NKT275 transistors, you can't make one that sounds good.  The newer Chinese "NKT275"s don't meet Fuller's standards.  I've seen a blue 1970s Dallas Arbiter Fuzz Face tagged $650 in a store.  Info.
Baja Tech Das Fuzz Ge.  Germanium Fuzz Face clone.  $156 new.
Baja Tech Bone Bender.  Based on early germanium Vox Tone Bender for Revolution sound.  $156 new.
Baja Tech Bone Bender Mk I.5.  Based on early two-transistor germanium Sola Sound Tone Bender.  $156 new.
Baja Tech Bone Bender Mk II.  Based on three-transistor germanium Vox/Sola Sound Tone Bender Professional Mk II for Page/Beck sound.  $165 new.
Baja Tech DaMOAF.  "Mother of All Fuzzes", but MOAF sounds a little like Muff, eh?  Knobs: Volume, Sustain, Tone.  "Big, gnarly wall of fuzz."  Battery only (carbon-zinc recommended); no LED.  $165 new.
BBE Free Fuzz.  1970s-style silicon fuzz.  Fuzzier than my Square Face; much less fuzzy than a modern Big Muff π.  $120 new.
B.Y.O.C. makes several models as kits or pre-built.
Cusack Screamer Fuzz: Similar to the Cusack Screamer, but instead of a Tone knob there is a Fuzz knob*.  I wanted one badly until I saw the video demo; it's still pretty cool.  (HC).  $175 bare metal/$200 black finish.
Cusack Screamer Fuzz V2: Similar to the Cusack Screamer, but instead of a Tone knob there is a Fuzz knob*.  V2 adds the Clip Selector toggle switch.  (HC).  $225 or $225 new.
D.A.M. 1966.  Very popular Vox Tone Bender germanium fuzz interpretation. 
D.A.M. Meathead.  A silicon fuzz.
Díaz Texas Square Face.  César Díaz used to hard-wire these and goop them.  Since his death (2002?), his family makes them with the transistors in sockets and supplies a few different transistors to try.  (HC).  $225 new.
Dunlop Fuzz Face, $100 new.  Germanium PNP transistors.
Dunlop Jimi Hendrix Fuzz Face, $150 new.  Pundits praise this unit's vintage analog cred.  It uses BC-108 silicon transistors like the later Fuzz Faces used by Band of Gyspies-era Jimi.  Clip.
Electro-Harmonix vintage Big Muff π.  Introduced in 1970, the Big Muff went through a few versions, each of which has passionate adherents and is eagerly sought by vintage tone hounds.  Modern cloners have made pedals inspired by each variant.
Electro-Harmonix USA Big Muff π, $80.  The modern Big Muff reissues are claimed by some not to sound like the vintage ones.  I still think I want one, because it's such a classic over-the-top high gain fuzz sound and they don't cost that much.
Electro-Harmonix Little Big Muff π, claimed to sound like the old ones.  I don't know whether this means it's the same as the full-size model, or different and more vintage-voiced.
Electro-Harmonix Big Muff Pi with Tone Wicker.
Electro-Harmonix Holy Stain.  A multi-effect with a two-voiced analog fuzz circuit and a DSP that toggles between two reverbs, limited laggy pitch-shift, and tremolo.  Not flexible for on-stage tweaking on the fly; dial a tone and toggle it on or off.  Around $100 new.
FoxRox Captain Coconut II.  A sort of Hendrix-focused boutique analog multi-effect, containing a fuzz, an octaver, and other modules to get Hendrix-esque tones.  Now discontinued?
Frantone Peach Fuzz
Frantone The Sweet
Fulltone '69.  "Warm" germanium fuzz, modeled after the Arbiter Fuzz Face popularized by early Jimi Hendrix.  Discontinued July 2007 because the old germanium transistors used are getting too hard to find, and modern "equivalents" don't sound as good to Mike Fuller.  Was $170ish new; now $250ish used and going up.
Fulltone '70.  "Harsh" silicon fuzz modeled after the Fuzz Face pedals of the early 1970s.  Silicon transistors intentionally mismatched for harmonic content.  $170 MSRP
Fulltone Soul-Bender.  "Warm" germanium fuzz, modeled after the Solasound Tonebender used by Jimmy Page and Jeff Beck from 1968-1970.  Discontinued July 2007 because the old germanium transistors used are getting too hard to find, and modern "equivalents" don't sound as good to Mike Fuller.  Was $170ish new; now $250ish used and going up.
Gaspedals Bettie.  Limited-edition one-knob silicon Fuzz Face interpretation.  Pin-up girl graphics.
Gaspedals Cam.  Low-production one-knob silicon Fuzz Face interpretation; I missed a shot at one once and would like to hear one.
Gaspedals GasBender.  Low-production Tonebender interpretation.
Gaspedals GasFace.  Limited-edition one-knob germanium OC44 Fuzz Face interpretation with sonic quirks but overall awesome tone.
Greer: See Nick Greer.
Hartman NKT275
Keeley Fuzz Head
Kendrick Buffalo Pfuz, discontinued c. 2002.  Large, heavy hexa-trapezoidal laser-cut-steel box with two footswitches (Clean Boost/Pfuz and Effect/Bypass) and two knobs (Gain and Volume).  No LED or power adapter jack.  ( HC ).  Was $169 (?) new; around $125 used.
Lovepedal Black Beauty.  Blendable "germanium treble booster and a fuzz in a single pedal".  ( HC ).  $250 new.
Lovepedal Karl.  Silicon-based fuzz pedal with "unique ring-moddish swell".  $215 shipped new.
Lovepedal Morph, twist a knob to transition/blend from warmer germanium-based to nastier silicon-based fuzz sound.
Mad Professor Fire Red Fuzz.  Thread.  Clip.  $312 new.
Malekko Barker Assmaster.  Octave fuzz, clone of the Maestro Bass Brassmaster.  Used with bass (industrial types love it) and guitar (as an octave fuzz).  (HC). 
MI Audio Neo Fuzz (2005-present), vintage-voiced fuzz with six knobs* and two AC128 germanium transistors.  $180 new.
MI Audio GI Fuzz (2005-present), high-gain fuzz with six knobs and three silicon transistors.  $160 new.
MJM BritBender.  Another Tonebender-derived fuzz?
Monsterpiece Classic, a Fuzz Face clone (?).  The maker sells these on eBay for $95 plus shipping.
Nick Greer Black Fuzz.  Description.  Just a footswitch and an unmarked Volume knob; player controls gain using guitar knob and picking dynamics.  Big Mike's YouTube demo.
Nick Greer Ghetto Stomp.  Description.  Sonically somewhere between a fuzz and a distortion.  Cool sound, pretty touch sensitive.  Big Mike's YouTube demo.
Nick Greer Razorburn fuzz.  A hybrid silicon/germanium Fuzz Face variant with Volume and Fuzz knobs.
PedalWorX Hellbilly (2009).  Beloved, resurrected hybrid overdrive/distortion/fuzz with myriad tones in it from interactive controls* and sensitivity to player dynamics (cleans up well even at high gain).  History*.  (HC). 
PedalWorX McFuzz (2002).  Silicon fuzz with flexible voicings; sometimes built as hybrid Si/Ge fuzz*.  Reviews: TGP, user and HC.  Listed at PedalWorX site but not at any retailers?
PedalWorX McFuzz Hot.  "Hotter" than the standard McFuzz because it uses two higher-gain silicon transistors instead of one silicon and one germanium.  Details*.
Phoenix Custom Electronics Lady Stardust.  Germanium Vox ToneBender interpretation.
Phoenix Custom Electronics Little Red Rocket.  Germanium Sola Sound Tone Bender interpretation.  (HC).  $205 new.
Phoenix Custom Electronics The Fuzz.  Germanium Fuzz Face interpretation.
Prescription Electronics The Experience, an octave fuzz inspired by Jimi Hendrix' Fuzz Face.  $299 MSRP, $249 street.
Prescription Electronics Yardbox (1994), "A faithful sonic copy of the original Sola Sound Tonebender, purportedly the only distortion pedal used on Led Zeppelin's first two albums."  $200 MSRP, $175 street.
SIB! Butt Face
Skreddy Lunar Module.  "Edgy, Aggressive Silicon Fuzz" (inspired by Dark Side of the Moon?). $200 new with two month build time.
Skreddy Mayo.  Highly-regarded but discontinued germanium "aggressive wall of fuzz" pedal.
Skreddy Pink Flesh.  Highly-regarded but discontinued (can't get the germanium transistors any more) fuzz pedal; sort of a triangle-knob/ram's-head synthesis.
Sola-sound Tonebender, a 1960s germanium fuzz pedal (different than the Tonebenders sold under the Vox and Coloursound names), "used by Beck and Page on much of their circa 1968-70 recordings."  Modern clones*.
Sweet Sound Fillmore West Fuzz.  Description*.  NPN silicon Fuzz Face interpretation with matched BC108 transistors. Knobs: Volume, Fuzz.  $190 new.
Sweet Sound Monterey Fuzz.  Description*.  PNP germanium Fuzz Face interpretation with factory-matched NKT275 transistors.  Knobs: Volume, Fuzz.  $190 new.
Sweet Sound Pi Face.  Description*.  Big Muff clone with "Rams Head, Triangle and mid 70s features rolled into one."  Knobs: Volume, Attack.  $190 new.
Sweet Sound Pro Bender Mrk II.  Description*.  Sola Sound Tone Bender Mk II interpretation with three OC-81 germanium transistors and a bit more output than the originals.  Knobs: Volume and Attack.  $200 new.
ThrōBak Electronics Fuzz Haze, recreation of the early Dallas Arbiter germanium Fuzz Face.  $179 MSRP.
ThrōBak Electronics sTone Bender Mk II Pro clone of the triple Germanium Sola Sound Tone Bender used by Page and Beck.  $189 MSRP.
Tonefactor Hellbilly (2004-2006?).  Beloved but discontinued hybrid overdrive/distortion/fuzz with myriad tones in it from interactive controls* and sensitivity to player dynamics*.  History*.  (HC).  2009 update!*
Tonefactor Huckleberry
Voodoo Lab SuperFuzz.  Inspired by Bosstone fuzz.
Way Huge* Purple Platypus Overdrive.  They called this 1990s pedal an "overdrive", but it's actually an octave fuzz that can go way over the top.  (HC).
Way Huge* Swollen Pickle Fuzz (1997-1999).  Highly-rated 1990s Muff-inspired three-knob fuzz that now commands $700+ on the used market.  (HC).
Way Huge WHE401 Swollen Pickle MkII Fuzz (2008 -  ).  Dunlop/Way Huge update. External knobs: Loudness, Filter, and Sustain (like a Muff) plus Scoop and Crunch.  Internal trimpots: Voice and Clip.  $160 new.
I'd like to hear the Sunface, a vintage Fuzz Face, Fazz Face reissue, Screamer Fuzz, a modern Big Muff π and the Little Big Muff π, Yardbox, McFuzz, Hellbilly, Mayo, Pi Face, and sTone Bender.
Links: TDPRI,

EQ:  
Antelope Effects Morning Dew EQ.  Boutique take on the Ibanez PQ-9 Parametric EQ of the 1980s.  Discontinued and now expensive used, if you can find one.  See Fromel Shape EQ.
Barber BarbEQ
BBE Sonic Stomp.  This is a two-band equalizer with "Low Contour" offering up to +12dB @ 50Hz and a "Process" band offering up to +12dB @ 10kHz.  Like your stereo's "loudness" button, but for your guitar.  $100 new.
Behringer EQ700 Graphic Equalizer, $20 (Just say no.)  
BJFE Sea Blue EQ (SBEQ).  Not sure if this is a BFJE or Mad Professor pedal, actually.
Boss GE-7, $100.  (1981-present).
Boss EQ-20 Advanced Equalizer, twin-sized 10-band graphical EQ stores nine EQ presets for quick recall.  This was discontinued before I thought about how useful it would be, but three years later I'm passing on an opportunity to buy one "unused in box" because I hear more magic from broader-contoured analog flters and less magic from digital devices in general.
Carl Martin 3-Band Parametric Preamp.  3-band semi-parametric (no Q control) EQ with output level knob and both 1/4" and XLR outputs.  Designed for acoustic guitar, violin, and bass, but useful for electric instruments too.  AC-powered.
Catalinbread Varioboost Preamplifier.  Freq. knob chooses a frequency between 70Hz - 1400Hz, 12dB knob boosts or cuts it between +/- 12dB; Gain knob provides overall volume control.  $160+ new.
Empress ParaEQ.
Fromel Shape EQ.  Up-and-coming Seattle pedal builder's boutique take on the Ibanez PQ-9.  Gets good reviews.  $180 new.
Maxon PQ-9 Parametric Equalizer.  Parametric EQ in a 9-series stompbox.  This is no longer listed at Maxon's Web site and may have been discontinued.
MXR M109 6-band Graphic Equalizer, $70.  This reissue is all high-tech, with a 9VDC power jack, LEDs in the sliders, and a footswitch.  The 1970s version EVH used had none of those.
MXR M108 10-band Graphic Equalizer, $120  

Tremolo:  
Boss TR-2?.
Cusack Tap-A-Whirl.  Features tap-tempo footswitch.
Earthquaker Devices Pulse Machine.
Empress Tremolo.  Has a good reputation.
Fulltone Supa-Trem.
Menatone Pleasure Trem 5000.
Seymour Duncan Shape Shifter tap tremolo pedal.
ZVex Trem Probe.

Wah:  
Dunlop Cry Baby, $70   I bought mine in the late 1970s or early 1980s.
Dunlop Crybaby 535 wah pedal.  Wah with large rotary switch for choosing different voicings, and foot-toggle for boost.  Not sure if boost volume is adjustable or if there is a "Q" knob.  (HC).  Replaced years ago by 535Q. 
Dunlop Crybaby 535Q wah pedal.  Wah with large six-way rotary switch for choosing different voicings, foot-toggle for variable boost, and small knobs for boost volume and the "Q" of the wah effect (sharp to broad).  (HC).  $130 new.
Snarling Dogs Blues Bawls, a wide-ranging wah pedal with three switchable wah personalities and a built-in overdrive pedal.  Cool concept marred by Chinese quality control issues.  $110   (HC)  

Reverb:  
Boss RV-5.  $150 new.
Marshall Reflector RF-1.  Compact digital modeler of several different reverb types.  $120.

Delay:  
Cool features for delays: Adjustable boost -- a delay with a boost* makes a cool one-stomp soloing tone.  Two outputs*, one wet and one dry -- sounds cool with two amps.  Multiple delay settings*, footswitchable.  Tap tempo*?
Akai E2 Headrush delay pedal.
Analogman AR20DL Analog Delay.  Basic 300ms analog delay pedal inspired by the Boss DM-2.  This is made in China*.  No true bypass, but AM upgrades the buffer circuit.  $145 direct from Analogman.
Analogman AR20DL-XL Analog Delay.  This "eXtended Length" version of the AR20DL uses two BBD chips for 600ms delay time but is otherwise the same pedal.  $195 direct from Analogman.
BBE Two Timer.  Inspired by the Boss DM-2, this has two separate delay time knobs (up to 330ms) and a second footswitch for toggling between them.  Controls*, features*.  Notes*.  Reviews: Gearwire, HC.  $149 new.
Biyang AD-7 Analog Delay.  This "analog" delay is made using the PT2399 digital single-chip analog delay emulator.  Supposedly the PT2399 is a pretty good emulator, but these shouldn't be claimed to be analog delays.
Black Box* Quicksilver.  Analog-sounding digital delay with two footswitchable delay times*, effects loop*, modulation*, and expression pedal jack*.  Seven knobs, single output, no tap tempo.  Reviews*: GP, HC.  $475 new.
Boss DD-2 (1983- ).  An older "made in Japan" Boss compact digital delay which is sought after by some over the newer "made in Taiwan" models.
Boss DD-3 Digital Delay (1986-present), $110.  Direct and effected outs for dry/wet "stereo".  800ms is really long enough.  With Analog.man Hi-Cut mod: $178.
Boss DD-5 Digital Delay (1995-recent).  Still listed on the Boss website, but I haven't seen it at retail.  1ms-2000ms delay times.  Features jack for external tap-tempo switch.
Boss DD-6 Digital Delay (2002-2008), $160.  Genuine stereo delay worth extra $50?  1ms-5200ms delay range is nice on paper.  Don't care for "Reverse" feature.  Tap-tempo is via cumbersome "step-and-hold" method.  $200.
Boss DD-7 Digital Delay (2008).  1ms-6400ms delay range.  New modes: Modulation and Analog (DM-2 model).  Jacks for external tap-tempo switch and for expression pedal*.  $160 new.
Boss DD-20 Giga Delay, twin-sized programmable modeling pedal went from $180 in 2006 to $220 in mid-2007.  Tone control can cut highs on repeats to simulate "analog" sound.
Boss DM-1 Delay Machine (1978-).
Boss DM-2 Delay Machine (1981-1984).  Boss compact analog delay that is highly sought after despite its short (30-300ms) delay time.  Three different versions were made using two different BBD chips.  Learn about it.
Boss DM-3 Delay Machine (1984-1988).  Boss compact 20-300ms analog delay.  The last Boss analog delay, and first Boss delay with a Direct (dry) output.  Learn about it.
Boss RE-20 Space Echo.  COSM-modeler of the famous Roland RE-201 Space Echo, complete with digitally-replicated tape flutter.  $250 new.
Carl Martin DeLayla vintage style echo with switchable second delay tap.  Medium-size unit with knobs for Echo, Tap, Time, and Repeat; footswitches for On and Tap.  Built-in power supply.  (HC).  $364 new.
Carl Martin DeLayla XL vintage style echo with switchable second "Slapback" delay tap.  Larger-size AC-powered unit with knobs for Echo, Feedback, Slapback, and SB-Trim; footswitches for Echo, Slapback, and Tempo.  Built-in power supply.  (HC).  $385 new.
Carl Martin Echotone.  1200ms analog-flavored digital delay with effects loop for tweaking delayed sounds and tap tempo for repeat rate.  $420 new.
Carl Martin Red Repeat.  600ms analog-sounding digital delay with knobs for Echo, Tone, Time, and Repeat.  Medium-big case, only one footswitch, not true bypass.  Battery or 9VDC power*.  (HC).  $123 new.
Danelectro Wasabi Rock-A-Bye AS-1 (2003-present).  Delay and overdrive* in one large, heavy pedal.  Four knobs*, a slider*, two DIP switches*, and two footswitches*; two outputs; 9V battery or wall wart power.  (HC)  $80 plus shipping, or $100 new.
Diamond Memory Lane.  A highly-regarded 550ms analog delay with modulation features and tap tempo switch,  Two outputs: "Mix/Dry" and "Delay Only".  $430.
DigiTech DigiDelay.  Features jack for external tap tempo switch?
DLS EchoTap. 
Dr. Scientist Sunny Delay
Earthquaker Devices Disaster Transport (2007).  Analog-sounding digital delay with Bypass and Modulation footswitches, Short/Long toggle, and five knobs (Mix*, Intensity*, Speed*, Repeats*, Time*).  Audio clips.  $175 new.
Electro-Harmonix Deluxe Memory Man (1976-????).  AC-powered analog delay with zip cord and blue label.  Four knobs: Level, Blend, Feedback, and Delay.  Delay time?  Can use Level knob as clean boost.  ~$300ish used.
Electro-Harmonix Deluxe Memory Man (late 1970s).  AC-powered analog delay with zip cord and blue label.  Five knobs, including "Chorus/Vibrato".  Delay time?  Can use Level knob as clean boost.  ~$250ish used.
Electro-Harmonix Deluxe Memory Man.  1990s (?) AC-powered reissue with grounded cord, black label, and five knobs including "Chorus/Vibrato".  Ads claim 550ms analog delay; Analog.man says 400-450ms.  ~$200-250 used.
Electro-Harmonix Deluxe Memory Man.  2000s (?) analog delay with 24V wall wart.  Five knobs.  550ms? analog delay.  May still be available NOS here and there; $200-250 used.
Electro-Harmonix Deluxe Memory Man (2006+).  Analog delay with 24V wall wart and true-bypass relay switching.  How to tell which version?  $313.50 new
Electro-Harmonix Stereo Memory Man (discontinued c. 2007?).  300ms analog delay with modulation features in classic E-H large sheet metal format.  $180 new.
Electro-Harmonix Stereo Memory Man Delay with Hazarai (2007-).  Digital delay with "Hazarai" control that switches modes and saves a preset.  (Design interview).  $215 new.
Electro-Harmonix #1 Echo (2007- ).  A digital delay focused on simplicity and ease of use.  Three knobs: Blend, Delay Time, and Feedback.
Empress Superdelay.
Eventide Timefactor.  Sophisticated studio-bred digital delay in a three-footswitch stomp box with looper functionality.  Switches for line or instrument level use.  Dual 3sec delays.  $400 new.
Freakshow DigiLog analog-sounding digital delay with UFO-noise freakout switch.  0-300ms and 300-600ms modes.  (HC).  $190 new.
Fulltone TTE (Tube Tape Echo).  Nothing else sounds like a true tape delay.  For those who want the sound but not the maintenance of a Maestro EchoPlex, Fulltone makes the brand new TTE.  $1100 new.
Hughes & Kettner Replex, $500 or $650.  Digital modeler of Maestro EchoPlex; part of Victor Mason's recipe for early EVH tone.  ( HC ).
Ibanez AD-80 analog delay (1979-1981).  Pink contemporary of the TS-808, famous and desired for its tone and the euphonious noise and distortion it adds.  Required two batteries (good for two gigs) or an 18V power adapter.  Knobs: Delay Time, Blend, Repeat, plus four internal trimpots.  Links: (info), (fan page), (HC).  $200-500 used.
Ibanez AD-9 Analog Delay reissue.  300ms analog delay with old-school 9-series buffered bypass.  $150 new.
Line 6 DL-4 Delay Modeler, $250 new.  Popular, flexible, large, and reportedly subject to issues of reliability and tone suckage.  Three stompable presets, lots and lots of options.
Line 6 Echo Park.  Compact delay modeler with lots of options.
Lovepedal ECHO baby.  A subcompact 760ms "analog-sounding" digital delay.  Controls*; I/O*.  A modulation feature auto-adjusts intensity and rate along with delay time changes.  $200 new.
Mad Professor Deep Blue Delay, compact boutique 25-600ms digital delay made to sound like an analog one, $345 new.  Being discontinued?
Maestro EchoPlex EP1/EP2.  1960s-1970s tape-cartridge-based delay unit.  Early (EP1 and EP2) models were tube-driven and could add their own distortion.  EVH?*.  Holy Grail, but at a price*.
Maestro EchoPlex EP3.  1960s-1970s tape-cartridge-based delay unit.  EP3 was transistor-driven; at least one modern boutique boost/buffer circuit is based on the one in the EP3.  EVH?*.  Holy Grail, but at a price*.
Malekko Echo 300 Dark (green box marked "ID-300").  Compact 300ms analog* delay.  Knobs: 0-300*, Echo*, and Excess*.  Switchable true bypass or buffered output.  Single output jack.  Battery or adapter*.  $185 new.
Malekko Echo 300 Bright (gold box marked "ID-300").  Compact 300ms analog* delay.  Knobs: 0-300*, Echo*, and Excess*.  Switchable true bypass or buffered output.  Single output jack.  Battery or adapter*.  $185 new.
Malekko Echo 600 Dark (green box marked "ID-600").  Compact 600ms analog* delay.  Knobs: 0-600*, Echo*, and Excess*.  Switchable true bypass*, dual outputs*, and expression*.  9VDC adapter only*.  (HC).  $255 new.
Malekko Echo 600 Bright (gold box marked "ID-600").  Compact 600ms analog* delay.  Knobs: 0-600*, Echo*, and Excess*.  Switchable true bypass*, dual outputs*, and expression*.  9VDC adapter only*.  (HC).  $255 new.
Malekko Echo 919 -- coming in 2009.
Marshall EH-1 Echohead.  Sophisticated and flexible compact digital modeling delay pedal.  Jack for external tap tempo switch.  $120 new.
Maxon AD-9 Analog Delay (discontinued in 2006).  Analogman lauds its great analog tone, but it only goes to 300ms.  True-bypass switch, unlike the Ibanez version.  Was $300 new.
Maxon AD-9 Pro Analog Delay.  True-bypass analog delay increases delay time to 450ms with advanced companding noise reduction, wide dynamic range.  Dual-head mode*.  Wet/Dry outputs.  Battery or 9VDC adapter.  $300.
Maxon AD-900.  Discontinued when Panasonic MN-series BBD chips were discontinued?
Maxon AD-999 Analog Delay.  900ms from a real analog delay!  Maxon has their own custom-designed MC4107D bucket brigade device chips made for their analog delays.  Wet/Dry outputs.  9VDC power.  $350.
Maxon AD-999Pro Analog Delay Pro.  Adds some small "Multi-head" switches and noise reduction technology to the AD999.  Wet/Dry outputs.  9VDC power.  $400 new.
ModTone Vintage Analog Delay MT-AD.  This compact 130-350ms "analog" delay actually uses the PT2399 single-chip digital emulator of an analog delay, as in this DIY delay project (PDF).  Knobs: Time, Repeat, Mix.  Single output; 9VDC input.  (HC).  $100 new.
MXR Carbon Copy M169 (2008).  Compact 600ms analog delay with modulation function.  Delay, Mix, and Regen knobs, with Mod switch; internal trimpots control modulation Width and Rate.  Single output, 9VDC input.  (HC).  $130 new.
Retro-Sonic Analog Delay.  Based on the Boss DM-2 circuit, this medium stompbox has a second footswitch that chooses 0-300ms or 300-600ms delay range*.  Knobs for Repeat Rate, Intensity, Echo, and Tone.  Comparisons, (HC).  $300 new.
Retroman Kopycat.
Rockson AD-80 Analog Delay.  Clone of Boss analog delay, often for sale used and cheap.  That's because the maximum delay time is under 200ms, good only for slapback and reverb-like effects.
Roland RE-100 tape echo (1973).  1970s tape-cartridge-based delay unit. 
Roland RE-200 tape echo (1973).  1970s tape-cartridge-based delay unit. 
Roland RE-101 Space Echo (1974).  1970s tape-cartridge-based delay unit. 
Roland RE-201 Space Echo (1974).  1970s tape-cartridge-based delay unit. 
Roland RE-301 Chorus Echo (1977).  1970s tape-cartridge-based delay unit. 
SIB! Echodrive.  There was a blue analog version in the 1990s that was made to sound like the Maestro EchoPlex.  Plug in a volume pedal to control delay time (analog version only).  People love this.  $375 until discontinued; now $800-900 used.
SIB! Echodrive.  There was a red or black digital SIB! Echodrive later that was made to sound like natural echo, rather than the EchoPlex.  $375 until discontinued; still $350 used.
SIB! Mr. Echo.  Analog-flavored digital delay that draws tonal praise*.  The original version was quite cheap, between $109 and $150 new, and was plagued by footswitch problems*.  It has been replaced by the Mr. Echo Plus.
SIB! Mr. Echo Plus (2007).  Analog-flavored 550ms digital delay that draws tonal praise* and fixes the footswitch problems.  This has a "Slam" switch*, boost feature*, and Control jack*.  Single output.  (HC).  $180 new.
Smart People Factory I-5 Delay.  1-second digital delay with "Warm" knob*, effects loop/expression pedal jack*.  Medium stompbox with single footswitch and single output.  (HC).  $250 direct.
Subdecay Echobox.  Analog-flavored* ~800ms digital delay with switchable modulation and switchable true bypass* in a medium single-switch stompbox.  Controls*.  Single output.  $225 new.
tc electronic Vintage Delay, $400.  This has been discontinued.  It was a repackage of the T-Rex Replica digital delay, and similarly admired for its tone.
tc electronic Nova Delay ND-1.  Highly regarded digital delay unit.  1-2290ms delay times.  Five knobs*, five buttons*, two footswitches*; features*.  (HC).  $250 new.
Tech 21 Boost DLA (until 2008).  Analog-volced 1000ms digital delay with knobs for Mix*, Feedback, Tone, Time, Level (up to 9dB boost), and Flutter.  LED, 9V input, single footswitch.  Buffered bypass.  Single output.  $150 or $150 new.
Tech 21 Boost DLA (2009).  Analog-volced 1000ms digital delay with knobs for Mix*, Feedback*, Tone, Time, Level (up to 9dB boost), and Flutter, buttons for Trails and Triplets, and footswitches for Bypass and Tap Tempo.  LED, 9V input.  Buffered bypass.  Single output.  ? or ? new.
T-Rex Replica.  A highly-regarded 1500ms digital delay.  Footswitches: On/Off and Tap Tempo.  Buttons: Brown* and Subdivision*.  Knobs: Echo*, Level*, Repeat*, and Tempo*.  MIDI input*.  Disadvantages.  Direct (dry) and Output (mix) outputs.  (HC).  $400 new.
T-Rex Reptile (2008).  Little brother of the Replica, features Modulation functions.
Toneczar Echoczar.
Univox EC-80.  Old tape echo? Was it this, or an EchoPlex, that EVH mounted in that bomb casing?
Visual Sound H20 Liquid Chorus and Echo.  Analog chorus and 800ms "analog-flavored digital delay" effects, separately switchable, in one box.  Seen onstage with U2.  $170 new.
Wampler AnalogEcho.  This is a PT2399-based digital delay emulating an analog delay sound.  Four knobs including Tone control for repeats to emulate "warm analog" or "fat tape echo" sounds.  $140 new.
Way Huge Aqua Puss analog delay.  Very popular 300ms analog delay from the 1990s, commands around $800 used now.  Brad Paisley uses one.  (HC).
Delays I haven't heard that I'd like to hear: BBE Two Timer, Black Box Quicksilver, Diamond Memory Lane, newest E-H DMM, Eventide Timefactor, Freakshow Digilog, Fulltone TTE, H&K Replex, Line 6 DL-4, Malekko 600 (both), Maxon AD-999, SIB! Echodrive (blue), SIB! Mr. Echo Plus, tc electronic Nova Delay, T-Rex Replica, Tech 21 Boost DLA (2009), Way Huge Aqua-Puss.

Looper:  
Boss LoopStation.
DigiTech JamMan.  $300 new.
Z.Vex Lo-Fi Loop Junky.  Very bizarre analog (?) lo-fi looper in a compact pedal.  (HC).  $370 new.

Phaser:  
Boss PH-1 Phase Shifter (1977-).
Boss PH-2 Phase Shifter (1984-????).  I still have the PH-2 I bought in the early 1980s.  I like the sound, but I'd like to try an MXR.
Boss PH-3 Phase Shifter (2000-present), $100.  Features a jack for an expression pedal, and the modern Boss "press-and-hold" tap tempo scheme.
BYOC Script 90 Phaser.  $70 as a kit or $110 pre-built.  Adds a Depth knob in addition to the Speed knob.
Line 6 MM-4 Modulation Modeler, $250   Tempting because it models the MXR flanger, MXR Phase 90, Uni-Vibe, Boss CE-1 Chorus, tremolo, and more.
Marshall Regenerator.  Compact digital modeler of modulation (chorus, flanger, phaser, and vibe) effects.  $120.
MXR M101 Phase 90, $70.  During the 1970s, MXR changed the Phase 90 circuit to add mid-boost to the phasing swell and changed their logo from script to block type.  Presumably this is a reissue of the "block logo" version.
MXR EVH Phase 90, $130   Features a "Script" switch to emulate early-1970s "script logo" Phase 90 that Eddie Van Halen used (with boost mod?) for lead boost and soloing.  Critics pan this SMT PCB circuit, but it gives me grins!
MXR CSP-101S Custom Shop Script Phase 90 (no LED) (2007), $100.  Modern reissue of the early-1970s "script logo" Phase 90.  This one has the same SMT PCB that the EVH version has.  Critics pan this, too.
MXR CSP-101SL Custom Shop Script Phase 90 with LED (2007), $100 new.  Modern reissue of the early-1970s "script logo" Phase 90.  This one has the same SMT PCB that the EVH version has  Critics pan this, too.
MXR CSP-026 Custom Shop '74 Vintage Phase 90 (2007), $120 new.  This is a real reissue of the 1974 "script logo" Phase 90.  Discrete components soldered to non-SMT PCB.  Users like this one. 
MXR CSP-026 Custom Shop '74 Vintage Phase 90 "Full Boat Mod"(2007).  This is the MXR CSP026 modded to add LED, DC jack, and bypass switching.  Sounds good, but distorts audibly with even moderate vintage-style humbuckers (Suhr SSV).  I don't know if the unmodded CSP026 does this too.
MXR M107 Phase 100, $120  
Retro-Sonic Phaser, based on the script-logo MXR Phase 90 but with added Depth and Level knobs for flexibility/boost.  Bypass switching, LED, DC jack.  ( HC ).  $175 new.
Subdecay Quasar phase shifter.  Lots of control from 5 knobs.  Made in Dundee, Oregon.  $190 new.

Flanger:  
ADA Flanger.  One of the classic flanging sounds came from the ADA Flanger in the (early?) 1970s.  Is that the one used on Life in the Fast Lane, or was that real tape-reel flanging?
Boss BF-1 Flanger (1977-).
Boss BF-2 Flanger (1980-).
Boss BF-3 Flanger (2001-present), $120.   Boss stuff is easy to choose because it's compact, it all works together well and shares power supplies, but I want the MXR sound.
Electro-Harmonix Electric Mistress.
Fulltone Choralflange.  Fulltone says the flanging is "reminiscent of High Landrons".  $300 MSRP; $265 street.
Line 6 MM-4 Modulation Modeler, $250.   Tempting because it models the A/DA and MXR flangers, MXR Phase 90, Uni-Vibe, Boss CE-1 Chorus, tremolo, and more.
Marshall Regenerator.  Compact digital modeler of modulation (chorus, flanger, phaser, and vibe) effects.  $120.
MXR Flanger (1970s).  EVH used the AC-powered early-1970s version.  Later versions switched to using a wall wart.  Both variants are popular on the vintage market.
MXR M117R Flanger, $170.   Modern reissue uses two 9V batteries or an optional wall wart.  Should I get this reissue, or the new EVH model?  Requires 18VDC*.
MXR EVH117 Eddie Van Halen Flanger (2005?), $190.   EVH-graphics version with "EVH" switch that pre-sets "Unchained" mode.  Requires 18VDC*.
tc electronic Stereo Chorus Flanger, reputed to be the best-sounding chorus of the 1980s-1990s, though with some footswitch reliability issues.  $300 new.

Chorus:  
Boss CE-1 Chorus Ensemble (1976).  The first really popular chorus effect? Changed the sound of electric guitar, for a while.
Boss CE-5 Chorus Ensemble (1991-present), $80.  
Boss CH-1 Super Chorus (1989-present), $90.  
Fulltone Choralflange.  Eric Johnson says, "The Choralflange is the best chorus I've ever heard."  $300 MSRP; $265 street.
Line 6 MM-4 Modulation Modeler, tempting because it models the MXR flanger, MXR Phase 90, Uni-Vibe, Boss CE-1 Chorus, tremolo, and more.  $250 new.
Marshall Regenerator.  Compact digital modeler of modulation (chorus, flanger, phaser, and vibe) effects.  $120.
Retro-Sonic Chorus.
tc electronic Stereo Chorus Flanger, reputed to be the best-sounding chorus of the 1980s-1990s, though with some footswitch reliability issues.  $300 new.
Visual Sound H20 Liquid Chorus and Echo.  Analog chorus and 800ms "analog-flavored digital delay" effects, separately switchable, in one box.  Seen onstage with U2.  $170 new.
Voodoo Lab Analog Chorus, clone of 1976 Boss CE-1.  $170 new.

UniVibe clones:  Ever since Jimi Hendrix's Machine Gun and Robin Trower's Bridge of Sighs, people have dug these.  The Uni-Vibe was a type of optical phase shifter; there is some detail on that here.
Boss RT-20 Rotary Ensemble, not a UniVibe clone but a Leslie speaker emulator, with a UniVibe preset.  $200 new
Custom Audio Electronics Black Cat Vibe, $495 MSRP.
Jim Dunlop Uni-Vibe UV-1.  (HC).  $200 (ZZ) or $250 (MF). 
Dunlop Uni-Vibe Stereo Chorus (not listed at Dunlop site).  This is not the classic photoelectric Uni-Vibe, but a solid-state phaser/chorus intended to cop its sound.  $130 (ZZ) or $150 (MF).
Foxrox Provibe, $290.
Fulltone Deja Vibe 2, same as the Mini Deja Vibe but in a rocker pedal format for easy adjustment of modulation speed.  $325 MSRP, $293 street.
Fulltone Stereo Deja Vibe 2, same as the Mini Stereo Deja Vibe but in a rocker pedal format for easy adjustment of modulation speed.  $395 MSRP, $ street.
Fulltone Mini Deja Vibe, $275 MSRP, $248 street.
Fulltone Mini Stereo Deja Vibe, $350 MSRP, $.
Line 6 MM-4 Modulation Modeler, $250   Tempting because it models the MXR flanger, MXR Phase 90, Uni-Vibe, Boss CE-1 Chorus, tremolo, and more.
Lovepedal.  Originally, the maker was Magicboy and the pedal was the Lovepedal.  Now, the maker is Lovepedal, and recently the pedal is labelled "Vibe".
Lovepedal Vibe.  Sean Michael doesn't call this a dead-accurate Uni-Vibe clone -- in the compact form factor and with 9V power, it couldn't be.  External knob (Speed), internal trimpot (Intensity).  $190 MSRP.
Marshall Regenerator.  Compact digital modeler of modulation (chorus, flanger, phaser, and vibe) effects.  $120.
Prescription Electronics Vibe Unit, made in Portland.  Won Guitar Player's 1996 Uni-Vibe clone showdown.  $300 MSRP, $275 street.
Sweet Sound MoFaux compact one-knob vibe approximator.  $130 new. 
Sweet Sound Mojo Vibe seems to be one of those highly-sought-after, long-waiting-list, scalped-on-eBay kinds of pedals.  Half the size and weight of the Ultravibe, and can run on 9VDC.  $265 new in purple; $290 with pschedelic swirl paint.
Sweet Sound Ultra Vibe seems to be one of those highly-sought-after, long-waiting-list, scalped-on-eBay kinds of pedals.  Now discontinued.  Large AC-powered unit.  Limited-edition reissue sold out quickly at $425 in 2008.
Voodoo Lab Micro Vibe, $150.  Acclaimed because of its small size, 9V battery capability, and Machine Gun-like sound.

Compressor:  
Barber Tone Press, $150  
Keeley Compressor, two knobs, $220  
Keeley 4-knob Compressor, $250  

A-B switch:   Behringer AB100 Instrument/Amp Selector, $20   Behringer AB200 dual A-B switch, $20  
Divided by 13 Switchazel combines an A-B-Y switch and a Lift 9dB clean boost in one box with a Tuner output.  $275 street.
Morley ABY switch, $45  
Radial Big Shot ABY, $70  
Radial Switchbone combines transformer-isolated A-B-Y opti-cell switching with a Class A clean boost and Drag control.  $350 MSRP.

Effects loop switchers:  
Boss LS-2 Line Selector, active effects loop switcher with two loops and daisy chain pedal power output.  $80 new.
Psionic Audio Triad includes three stages of preamp/boost; the middle stage includes a series/parallel effects loop.  $300 MSRP.
Radial Loopbone features two footswitchable effects loops, adjustable Class A Varioboost, Drag control, always-on tuner output, and a SlingShot switch.  $350 MSRP; $260 street.
Toadworks Roundabout.  Passive effects loop switcher with two loops and true bypass.  $100 new.
Xotic X-Blender.  This is a series/parallel effects loop pedal with two levels of clean boost when used in parallel mode.  $230 new.

Noise gate:   Behringer NR100 Noise Reducer, $20   User reviews consistently call these cheap Behringer pedals useless. Boss NS-2 Noise Suppressor ISP Decimator Rocktron Hush

DI box:  
BBE Acoustimax.  A preamp/EQ/DI/Sonic Maximizer floor box for acoustic guitar.  $200 new or $177 from ProGuitarShop.
Behringer GI100 Ultra-G Active DI, $35   This is a useful DI box. Some users praise the cabinet-simulation feature; I haven't tried it yet.
Behringer DI100 Ultra-DI Active DI, $35  
Behringer GDI 21 V-Tone Guitar, $30   Behringer ADI 21 V-Tone Acoustic, $30   Behringer BDI 21 V-Tone Bass, $30   Behringer DI20 Ultra DI 2-Channel Active DI Box/Splitter, $25 (avoid: noisy)   Behringer Ultra-DI Pro DI4000, $80   Behringer Ultra-DI Pro DI800, $80   ART ARTcessories Zdirect Professional Passive Direct Box, $20   ART ARTcessories X-Direct Professional Active Direct Box, $30   Tech 21 SansAmp Para Driver DI, $200   Tech 21 SansAmp Bass Driver DI, $190  
Peterson StroboStomp, XLR direct box built into the most accurate stage tuner.  I bought one despite rumored reliability problems because it's perfect for my bass and nylon-string, especially playing live.

Tuners:  
Boss TU-2 Chromatic Tuner, has several modes and daisy-chain pedal power output, but the display is rather small and the golden-ears crowd accuses it of sucking tone.  $100 new.
Fender PT-100 Pedal Tuner: I went to Guitar Center to buy one of these, but left empty-handed because I thought the pedal was too big and the display too small.  $45 new in white or colors.
Korg DT-10BR Digital Foot Pedal Tuner has several modes and daisy-chain pedal power output with cable.  $100 new.
Korg Pitchblack. 
Peterson StroboStomp (????-2007), the most accurate stage tuner, has Buzz Feiten mode, programmable preset tunings, active XLR direct output, and daisy-chain pedal power output.  I bought one despite reading about the reliability problems at HC.    I'll be careful with it.  This will be great for my bass and nylon-string, especially on stage.  $190 new prior to clearance.  Why you want one.
Peterson StroboStomp 2 (2007-present), all the features of the StroboStomp, plus more "sweetened" tunings and presets -- and better Neutrik jacks, which I hope will resolve the product's reliability issues.  $200 new.
Planet Waves Chromatic Pedal Stage Tuner, "true hard bypass", a big easy-to read strobe-like display, and a daisy-chain pedal power output jack like the Boss TU-2 has.  $85 new in 2007.

Pedalboard power:  
BBE Supa-Charger.  Hefty pedal power supply with eight regulated, isolated, filtered outputs.  Select 120/240VAC input, 9/12VDC output (two outputs can also deliver 16VDC).  Fuse-protected with toroidal transformer.  $160 new.
Dunlop/MXR DC Brick DCB-10 provides regulated and conditioned DC power for seven 9VDC pedals totaling 375 mA plus three 18VDC totaling 625mA.  The MXR EVH-117 Flanger is an 18V pedal.  $110 new.
Visual Sound 1 Spot, $30 with Combo Pack of adapters.  1700mA.  Specs, features, and price are great, and the DC cable is more solid than most, but user reviews cite reliability problems.  Mine died after 13 months.
Voodoo Lab Pedal Power 2 Plus.  8 isolated 9V DC outputs; two can power Line 6 pedals and two have adjustable voltage sag.  $170 new in 2007.
Voodoo Lab Pedal Power AC.  Provides two 9VAC and two selectable 9VAC or 12VAC outputs.  Notice: this puts out AC, required by some specific pedals, not DC like most battery-powered units use!  $140 new.

Cables:   Yes, I have come to the realization that cables are effects.  I listened, and heard the difference between different cables.  It wasn't subtle.  The amount of brightness or lack thereof, the shape of the mids and treble, are affected more than I would ever have guessed (before I actually listened) by the guitar cable used.  Cables have capacitance and (small amounts of) resistance, hence, they are tone controls.  Longer cables affect tone more than shorter ones.  More expensive (or shorter) isn't automatically better; different cables work better with different guitars and amps.  I'm told that buffered effects can reduce the effect of different cables (at least the cables that follow the buffer in the signal chain), but I haven't done comparative listening to test that claim yet.  Compare some cables with your own ears and see what you find.

• Armor Gold Cables. 
• Klotz cables are made in Germany and imported to the U.S. by Kendrick Amplifiers.
• Lava Cables both make their own house brand cables and sell many other brands of high-end cables.
• Solid Cables.  It was comparing Solid Cables to the Spectraflex I had been using that impressed me with how much difference cables can make.

DIY:  
Most people use mass-market gear, and like it.  Some get into boutique gear.  A few get into building their own.  This can start with assembling kits as from BYOC, and lead through building projects from schematics to tweaking designs to designing projects from scratch.  This seems to be a progression that many of today's effects builders have gone through.  There are many online resources for the journey.  The question is, do I want to spend my time soldering, or playing guitar?

Still, building could be cool, and potentially save money.  $275 for a Switchazel, or $50 for the parts to put a buffer, A-B switching, and an Orman boost in a box?  (Just don't make the common mistake of assuming the result is interchangeable with a Switchazel!)  What cool combinations of effects could I cook up?  A BSIAB and a phaser in one box?  A delay pedal with a switchable lead boost?  All four of the previous in one box?  A box with the features of the Radial LoopBone and the Radial SwitchBone?  A couple of must-have effects in one box -- with a separate footswitch or two for switching channels/features on your amp?  A fuzz or overdrive pedal, but tweaked for what MY ears want to hear?

Multi-Effects

Boss ME-50 floor unit (2003-present), $295  
Boss GT-6 floor unit (2001-????), discontinued?
Boss GT-8 floor unit, $445.  The GT-8 is huge and expensive, and I hadn't planned on getting one, but found a good deal and bought it to try out.
Boss GT-10 (2008).
Carl Martin Quattro (original version with tremolo, 2005?).  Four stompboxes in one: compressor, overdrive with switchable crunch and high-gain settings, tremolo, vintage-voiced delay with tap tempo.  Discontinued; was $575 new.  Note.  ( HC ). 
Carl Martin Quattro (newer version with chorus, 2007?).  Four stompboxes in one: compressor, overdrive with switchable crunch and high-gain settings, chorus, vintage-voiced delay wth tap tempo.  ( HC ).  $625 new.
Electro-Harmonix Holy Stain.  The Holy Stain is a multi-effect with a two-voiced analog fuzz circuit and a DSP that can do two reverbs, simple laggy pitch-shift, and tremolo.  Not flexible for on-stage tweaking on the fly; dial a tone and toggle it on or off.  Around $100 new.
Line 6 PodXT Live floor unit, $340  
Line 6 PodX3 Live floor unit, $500   More models, dual processing units.
Line 6 M13.  Large floor unit that contains many of Line 6's pedal models, without amp modeling. 
tc electronic G-System, $1500.  Use it in front of your amp, or in an effects loop. 
tc electronic Nova System, floor-based multi-effect unit.  (HC). 

Rack gear

Alesis MidiVerb 4, $200   Not sure if this is more of a guitar-amp-effects-loop thing or a PA-or-home-studio thing.
Behringer Virtualizer Pro, $100   Not sure if this is more of a guitar-amp-effects-loop thing or a PA-or-home-studio thing.
Boss GTPro Effects Processor, $845  
Fractal Audio Systems Axe-FX Standard preamp/multi-effects.  Users say its amp, cab, and effects simulations blow away the other currently-available modelers.  ( HC ).  $1500 street.
Fractal Audio Systems Axe-FX Ultra preamp/multi-effects.  Users say its amp, cab, and effects simulations blow away the other currently-available modelers.  ( HC ).  $2200 street.
Lexicon MX200 Dual Reverb/Effects Processor, $200   Not sure if this is more of a guitar-amp-effects-loop thing or a PA-or-home-studio thing.
Line 6 PodXT Pro, the PodXT in a 2-space rackable unit with more flexible I/O.  $500 new.   I heard a metal band called Lucid with two guitarists.  Same Ibanez 7-strings, same MESA Recto stacks, but one guy had a PodXT Pro and his sound was weak compared to the guy who ran straight in.  Just killed the balls/cut/impact, made everything indistinct.  Of course, playing technique, guitar and amp settings may have contributed. 
tc electronic G-Sharp, $250.  7 delays, 2 phasers, 2 tremolos, vibrato, flange, 2 choruses, 15 reverbs.  MIDI in/out.
tc electronic G-Major, $400.  
tc electronic G-Minor footswitch, works with G-Sharp and G-Major, $130. 
tc electronic G-Force, $1500.  
tc electronic M300, discontinued at $150.  Not sure if this is more of a guitar-amp-effects-loop thing or a PA-or-home-studio thing.
tc electronic M350, $200.  Not sure if this is more of a guitar-amp-effects-loop thing or a PA-or-home-studio thing.
Tech21 SansAmp PSA-1.  SansAmp analog amp modeling in rack-mount format with extra features and flexibility.  The PSA-1 was replaced by the PSA-1.1 in the mid-2000s.
Tech21 SansAmp PSA-1.1.  Updated SansAmp analog amp modeling in rack-mount format with extra features and flexibility.  $660 new.

Modelers

Behringer V-Amp 2, $100.  The high marks this thing gets are a damning indictment of HC as a reliable source of gear opinion.  But then, perhaps this thing at $100 is fairly priced while a PodX3 costs little more to manufacture.
Behringer V-Amp Pro, $170   Rack-mount version of the V-Amp 2, with some different I/O options.
Boss GS-10 (2003-2006), discontinued.  Table-top studio modeler with USB audio interface built-in.   Sparkly cleans and nice effects models, but the amp distortions all sound blown-speaker buzzy. 
Boss GT-6
Boss GT-8 floor unit, $445.  The GT-8 is huge and expensive, and I hadn't planned on getting one, but found a good deal and bought it to try out.
Carvin TN100 Frank Gambale Tone Navigator, $550.  
Digitech RP150 (2007- ), $100.  17 amps, 48 effects, drum machine, USB audio interface.  Lots of functionality in a small package.  I wonder how the sound compares with the RP350?
Digitech RP250 (2007- ), $150.  21 amps, 54 effects, expression pedal, drum machine, USB audio interface.
Digitech RP300A, $150.  Discontinued in early 2007.
Digitech RP350 (2007- ), $200.  27 amps, 73 effects, expression pedal, drum machine, USB audio interface.  I wasn't impressed by the presets in an hour of surfing them at GC.  (HC) and (HC).
Digitech RPx400, $250.  User reviews say this is full of over-effected presets and sounds like a toy.  USB audio interface built-in.  Discontinued in 2007?
Digitech RP500 (2008 - ), $300.  Looks less like a toy than the RP350 and cheaper modelers, offers a far superior foot-switching setup, and "stompbox mode"*.  (HC).
Digitech RP1000 (2008 - ), like the RP500 but with more switches and options.
Digitech GSP1101 1U rackmount guitar effects modeling processor (2007- ), $500.  DigiTech calls this a "Pro" processor, but in what way is it better than the RP500 or RP150 besides MIDI and the rack-mount form factor?
Digitech GNX3 floor unit, $300   Are the GNX series descendants of Johnson's modeling technology?
Digitech GNX4 floor unit, $500  
Digitech GNX3000, $350  
First Act V-Stack Classic guitar preamp.  "Analog amp modeling*".  Generic "British" sound modeled after a Vox with a treble booster, but said to sound like a plexi.  Intended for DI/recording*.  (HC).  $200.
Fractal Audio Systems Axe-FX Standard preamp/multi-effects.  Users say its amp, cab, and effects simulations blow away the other currently-available modelers.  ( HC ).  $1500 street.
Fractal Audio Systems Axe-FX Ultra preamp/multi-effects.  Users say its amp, cab, and effects simulations blow away the other currently-available modelers.  ( HC ).  $2200 street.
Johnson J-Station (2000-2004), discontinued when Johnson's parent company (Harman) folded Johnson into DigiTech.  This table-topper's models are among the most realistic I've heard.
Line 6 Pod, discontinued.  If there is an "industry standard" modeler, the original bean-shaped table-topper is it.  Some say this sounds better than its successor models.
Line 6 Pod 2.0, $200   If there is an "industry standard" modeler, this is it.  Successor to the original table-top bean Pod.  Even more users claim this sounds better than the later models.
Line 6 PodXT, $300   If there is an "industry standard" modeler, this is it.  USB audio interface built-in.  Third-generation table-top bean.
Line 6 PodX3 (2007- ), $400   More models and two processing units (run your guitar through two emulated amp rigs simultaneously, or run guitar/vocals or guitar/bass simultaneously).  USB audio interface built-in.
M-Audio Black Box, $200   I don't know about realism, but there is something cool about the Black Box and I'll probably snag one at some point.  USB audio interface built-in.
Rocktron Prophesy, $1000   Gary Hoey says, "These Prophesy presets are so close to [EVH's] sound I can't even believe it!"
Tech21 SansAmp.  Late-1980s analog amp modeler has some fans.
Tech21 SansAmp Classic.  Reissue of popular late-1980s analog amp modeler.  (MF says it's discontinued, and Tech21 says "Production suspended until further notice."
Tech21 SansAmp GT2.  Simplified interface for SansAmp's analog amp modeling.  $190 new.
Tech21 SansAmp PSA-1.  SansAmp analog amp modeling in rack-mount format with extra features and flexibility.  The PSA-1 was replaced by the PSA-1.1 in the mid-2000s.
Tech21 SansAmp PSA-1.1.  Updated SansAmp analog amp modeling in rack-mount format with extra features and flexibility.  $660 new.
Tech21 SansAmp Character Series.  Stomp box analog modelers emulate specific amps: British, Liverpool, Blonde, California, and VT Bass.  $150/$150 each, new.
Vox ToneLab (discontinued 2007), $300.   Essentially the modeling front end of Vox's Valvetronix modeling amps, this table-topper has a good reputation for sound quality and intuitive controls.
Vox ToneLab LE (2007- ), $400.   This replaced both the original ToneLab and the ToneLab SE.  It's a smaller floor unit than the SE.
Vox ToneLab SE (discontinued 2007), $500.   This was the original ToneLab plus more features in a floor unit with an expression pedal.
Yamaha Magic Stomp II, *, $200   Small floor unit with just two stomp buttons.  Programmable via USB, but no Mac OS X drivers last I looked. 
Zoom G2 floor unit, $100.   Mostly interesting for its small size, 6.4" D x 6.2" W x 2.6" H.
Zoom G2.1U floor unit, $170.  
Zoom G7.1UT floor unit, $300.  
Zoom G9.2TT Twin Tube floor unit, $400.  

If you're tempted by a modeler, don't forget the ones built into amps.  I've used my Johnson JM-60 a lot more than my J-Station, to date.  There are lots of places where a tube amp isn't appropriate but a modeling amp might be, like an apartment, or a rehearsal or gig where a cranked tube amp would be too loud.  Some Vox ValveTronix amps literally have the original ToneLab as their preamp.  Some of the Line 6 Spider series amps cost little more than the equivalent stand-alone modeler.

Blatherings

I've been interested in guitar effects lately.  Not because I ever use the ones I have, of course, but just in general principles.

The typical scenario for guitar effects is, you buy a stomp box because you like the sound or your favorite axe slinger uses one and you want to try it out.  You plug it in, and maybe you use it or maybe you don't.  Then you run across another you want to try, and you buy that and plug it in line with the first one, then you add a third one and a fourth one.  I suspect in many cases, when you add the first effect you drastically change your tone and the way your guitar and amp interact electronically.  By the time you have a couple or three of them, your tone is much different.  The first effect adds one additional cable and two mechanical jack connections to your signal chain; each additional effect adds an additional cable and mechanical jack connection.

On the one hand, stomp boxes are cool.  They are simple, plug between any guitar and any amp, don't require an effects loop, and if that's what your guitar hero used to get the sound he got, it makes sense to use the same thing if that's the sound you want.  On the other, it just adds up to a bunch of boxes and cables and power adapters and a board to mount them all to -- a bunch of "stuff" -- unless you are prepared to stop after just a few favorite pedals.

So there are multi-effects.  The old-school ones contained the guts from a number of stomp-boxes all in one case.  The new-school ones tend to contain a DSP and firmware that models various classic stomp box models.  They are bigger than individual stomp boxes, but smaller than a typical collection of stomps.  They can be more expensive than a single stomp (or not, if you're into the boutique stomps), but again much less than a typical collection of individual effects.  The least expensive way to get an idea of what a variety of effects sound like are multi-effects (like the DigiTech RP350, $150 at the time of this writing) and modelers.

Finally, there are rack effects and multi-effects.  Nowadays I suspect that these are pretty much the same DSP-based effectors as you'd find in floor multi-effects, in a 19" rack case.  There is something slick and pro about rack gear, but for multi-effects, you're probably going to want a floorboard to control your rack unit anyway (at least if you play live), so it might make more sense to just buy a floor-mounted effector to start with.  I think too that rack effects tend to be less focused on guitar and more on line-level signals, so they'd be a better fit for an amp with an effects loop than for an amp without.  If you get tired of your state-of-the-art Boogie or Soldano and get a more primitive amp like an Atomic 16, a Plexi Marshall or clone like the Mini-Plex, a '59 Bassman, etc., your line-level effector will only be useful as a channel insert in the PA.  If you gig in places where putting an effect like that into a PA channel insert is an option, that might be a great way to go, but not everyone has that luxury.  Rack effects have actually become price-competitive with stomp boxes in some cases.

For practice, you could make a great argument for the flexibility of individual stomp boxes.  Just plug in the ones you want to use, and go.  For gigging, where everything has to be plugged in at once and easy hauling is a plus, some kind of multieffect (floor or rack) might be better.  Certainly more convenient, even for practice: just leave it plugged between your guitar and amp or in your amp's effects loop.

Short lists

Making a short list involves knowing what you want and what you don't, which presupposes you've heard these things enough to make judgements about them.  I certainly have not, which is why I'm collecting so many of them -- I want to hear what they sound like so I can decide what I want to keep.  Nonetheless, here's my preliminary take on a short list.

• A boost or overdrive that helps a plexi-like amp achieve EVH-style sound.  Boss SD-1?  Fulltone Full Drive II? 
• A footswitchable volume and maybe gain boost for solos.  SFX-01?  Fulltone Fat Boost?  Barber Launch Pad?  Klon Centaur?
• A "plexi-in-a-box" pedal for cranked sound at polite volumes or with clean amps.  HAO Rust Driver, Menatone King of the Britains, Fulltone OCD, MI Audio Crunch Box, Carl Martin PlexiTone, ZVex Box of Rock?
• Maybe one pedal that can do two or three of the above.  Carl Martin PlexiTone?  Fulltone Full Drive II?  Newer 7-knob King of the Britains?  Klon Centaur?  Boss OD-2R?
• MXR EVH phaser.
• MXR EVH flanger.
• Voodoo Labs Micro Vibe or another Uni-Vibe clone.
• Maybe one pedal that can do two or three of the above.  Line 6 MM-4?  Fulltone ChoralFlange?  tc electronic Stereo Chorus Flanger?
• A good delay pedal: small Boss or Line 6 DL-4?  Deluxe Memory Man?  Maxon or other analog delay pedal?
• A good wah pedal.

Pedals that I really want to hear:  Fulltone OCD, Klon Centaur, Hermida Zendrive, Carl Martin PlexiTone, Fulltone Fat Boost, Barber Direct Drive, Barber LTD, Clark Gainster, Fulltone Full Drive II, Xotic AC Booster, Xotic BB Preamp, MI Audio Crunch Box, CMATMODS Brownie, Menatone Kar Krash, Menatone Ms Foxy Brown, Menatone Red Snapper, Lovepedal COT50, Lovepedal COT50 Lil' China, Lovepedal COT50 Gold, Lovepedal LO Driver, Lovepedal Eternity, Voodoo Lab Sparkle Drive, Hermida Mosferatu, ProCo Rat, Duncan Twin Tube Classic, Radial Tonebone, ZVex Box of Rock, Line 6 DL-4, MXR EVH Flanger, Line 6 MM-4, Subdecay Quasar, Fulltone Choralflange, Voodoo Lab Analog Chorus, tc electronic Stereo Chorus Flanger, Voodoo Labs Micro Vibe.

There is an Amps in a Can thread on TGP discussing pedals that are intended to emulate the sound of certain amps.  It's a much more comprehensive list than the ones I've noted here.

"Marshall-in-a-box" pedals:  BJF Dyna Red Distortion, Blackstone Appliances MOSFET Overdrive, Carl Martin PlexiTone, CMATMODS Brownie, DIYPedalguy BSIAB (Brown Sound in a Box) / BSIAB2 (DIY), Fulltone OCD, HAO Rust Driver, Himmelstrutz Elektro Art Fetto, Indyguitarist Plextortion, Jack Orman Mini Tubes (DIY), Lovepedal Angus (JTM45), Lovepedal Black Magic, Lovepedal COT50, Lovepedal Purple Plexi, Mad Professor Mighty Red Distortion, Menatone King of the Britains, Menatone Ms Foxy Brown (18-Watt-ish), Menatone Workingman's Blue (JTM45), MI Audio Crunch Box, Snarling Dogs Black Dog, Toadworks John Bull, Toadworks Death Rattle, Toadworks Mr. Ed, Xotic BB Preamp (JTM45), ZVex Box of Rock (JTM45).

Dumble™-inspired pedals:  Barber Direct Drive, Custom Tones Ethos, HAO Rumble Mod, Hermida Zendrive, Jetter Gain Stage Red, Menatone Howie.  After Jack Zucker had posted several sound clips of Dumble-ish and other pedals on TGP, he was asked to sum up his impressions.    "For example, The Ethos has got the 80s dumble lead sound and has got an incredible clean boost, the GSR has a wicked dumble meets marshall lead tone, the zenith can do it all from TS9 to dumble-influenced rock, the Goudie is almost as versatile and has an incredibly sweet lead tone, the BB is very smooth and not as wicked and sounds like holdsworth to me.  The GSB has a kind of dumble with fuzz tone and the Hot Silicon does the Jimi thing.  The Eternity sounds so sweet and natural like an amp cranked up all the way and the Cot 50 sounds like Dr TS9 meets Jimi in an alley.  My Vaughc Modded TS9 nails the early Stevie Ray tones.  

"Cult of Personality" builders:  Sean Michael of Lovepedal, Zachary Vex of Z.Vex Effects, Brian Mena of Menatone, "Analog Mike" of Analogman, Robert Keeley.  These are the current hip kids.  Mike Fuller of Fulltone was big around the turn of the millenium, and Jeorge Tripp who designed the Way Huge effects was in the 1990s.  Roger Mayer has been big ever since the 1960s.

One approach is: how few effects can I use and still get the functionality that I want?  Each patch cable and each 1/4"-plug-to-jack connection robs tone, as perhaps might each transistor in each effects box.  Having a loop switcher to remove effects from the chain when not actually in use makes sense.  If that loop switcher also contained a clean boost, and if that clean boost worked in a way that was sonically comparable to a good stand-alone clean boost, then that's one less effect on the board.  If I could stand the sound of the Line 6 MM4 for all my modulation effects, that's one box that replaces three or four; if the DL4 does everything I want with delay and sounds good, that's another really powerful single box.  If a Tube Screamer is the overdrive sound I want, and the Visual Sound Route 66 sounds "close enough" to a Tube Screamer, and I want a compressor too, then there's one box for two jobs.  I look at some of the pro pedalboards people have and wonder how any signal gets through them at all.  "Keep it simple."  For example, I have three or four clean boosts now, but I've been reading good things about the ZVex Super Hard On.  I'd rather not spend another $200 for a clean boost, and I'd rather not have a pedal emblazoned "Super Hard On" on my board.  The Box of Rock has a 0-50dB clean boost circuit built in, " with refinements to make it sound more like a standard amp input and less glassy."  Since I have a Box of Rock, I might as well see how its boost meets my needs.  If I can't decide between the distortion tones of the OCD and the Box of Rock, then let the additional boost feature of the Box of Rock convince me. 

Buying

Where to find cool effects pedals?  First I check my super-cool local guitar store, and if they don't have it I might look in at Guitar Center (if I feel like paying the full new price for used-condition gear that somebody has taken home and used for a month then returned) or the big online vendors like Musician's Friend, Zzounds.com, Sam Ash, Music123, and so on.  But the good stuff is frequently found only at specialty suppliers, so frequently I'll need to check The Perfect Note, PedalGeek.com (huge selection), GuitarEffectsPedals.com, ToneFrenzy, MusicToyz.com (big selection), Pedals Plus Effects Warehouse, Bananas at Large, and more.  ToneFactor.com is usually a few bucks cheaper on HAO effects, and offers free shipping.  I usually also check with ProGuitarStore (503-670-4949), an eBay vendor located in Tigard, Oregon, because they discount (including Fulltone, Xotic, MI Audio, T Rex, Keeley, BBE, Subdecay, Catalinbread, Diamond, Retro-Sonic, Durham, tc electronic, DLS, Teese/RMC, Radial, Voodoo Lab, Electro-Harmnonix, Line 6, Rocktron, and DigiTech), ship for free, and entertain offers.  Finally, used stuff can be found not only on eBay but on the Emporium forums at The Gear Page and other music-related sites as well.