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MXR Distortion II
This one was kind of a sleeper. No where near as popular as MXR's Distortion +, the Distortion II was quite a bit more complicated and ran off a 15v supply, complete with a built power cord . This...
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MMR Fuzz
Here's another great design by Nocentelli for Fuzz Friday. It's a fairly simple 2-transistor design with a wide range of tones on tap. Pots are all board mounted and should fit in a 1590B just fine.
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Catalinbread Sagrado Poblano Picoso/AMZ MOSFET Booster
The Catalinbread Sagrado Poblano Picoso is a bass version of Jack Orman's (AMZ) MOSFET Booster. Really the only difference between the two are a couple cap values. So if you want to build the AMZ...
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Castledine Electronics The Wizard
Here's another take on the cascaded JFET overdrive design. This has a similar goal to the Catalinbread Sabbra Cadabra in trying to sound like Tony Iommi with a treble booster feeding a tube emulator....
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Glass Jaw
Fuzz Friday! Here's a cool one designed by Alec Breslow (check him out on Instagram) who was cool enough to share his schematic. It's based on the EQD Acapulco Gold with an added blend control and...
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Rockett 10 Ton Hammer
This appears to be Rockett's take on the Marshall Guv'nor, but with a few modifications. The tone control of the Guv'nor has been replaced with a Baxandall EQ tone stack and the output is boosted with...
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Tiger Pre-Amp
If you're a Dead Head, you'll probably be interested in this one. It's the pre-amp from Jerry Garcia's Tiger guitar used from '79-'89 and built by Doug Irwin. It's a unity gain buffer to prevent signal...
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Emanating Fist XB-70
The XB-70 is a clone of the Captain's personal '77(?) Guild Foxy Lady, which were built by Electro Harmonix and generally very similar to Ram's Head Big Muffs. In the Captain's own words, "It sounds...
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Keeler Push
Here's a recent trace from over on FSB. It reminds me of a Timmy with a fixed bass control and modified second op amp stage. Nice alternative to a Tube Screamer.
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Zombie Chorus
Got a request for this one. This was originally designed by John Hollis and has since been modified by various folks in the DIY community. Like the latest version of the Little Angel chorus, it has a...
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Höfner Buzz Tone
Pretty unique fuzz box from Höfner for Fuzz Friday. Pretty straight forward 3-transistor design that should make for a pretty easy build. Board mounted pots for less off-board wiring and if you want a...
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AMZ Son of Screamer
Where would DIY pedal building be without Jack Orman? Got a request for his Son of Screamer, which is a pretty standard Tube Screamer but with the input and output buffers removed. Pots are board...
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iRig Preamp
Got several requests for this one. Basically, it's small preamp to plug into a mobile device for use with apps like iRig. Pretty simple circuit. Shouldn't be hard to fit in a 1590a or even smaller...
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Parasit Studios Eagle Claw
Fuzz Friday! Freppo over at Parasit Studios makes some insanely cool stuff. Here's his Eagle Claw octave fuzz. You can probably squeeze it into a 1590a if you're feeling adventurous. In his own...
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Lovepedal Dover Drive
Here's a pretty interesting overdrive from Lovepedal (Hermida). The signal goes through a dual PNP silicon transistor stage (don't worry, it's still a negative ground effect), then into a op amp gain...
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Earthquaker Devices Chrysalis
Another oldie but goodie from EQD. The Chrysalis (now discontinued) is essentially a Speaker Cranker (with a pre-gain control instead of its normal gain control) into a Rat-style tone control, followed...
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Greaser Fuzz
Here's a cool little fuzz designed by Nocentelli over of FSB. It's based on the D*A*M GB-83, which is a silicon adaptation of the Tone Bender Mk. III (sans the tone control). Definitely worth building...
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JHS Twin Twelve V1
Here's the original Twin Twelve from JHS. It's an emulator of the old Silvertone 1484 amp. Like a lot of amp emulators (including their Superbolt) it uses JFETs and an 18v charge pump. The schematic...
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DeadAstronaut Chasm Reverb
Been a while since I did a reverb layout and this DeadAstronaut design does not disappoint. It's not a true-bypass effect, but uses some JFET switching so that tails are present when you turn the...
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Keeler Kick
For Fuzz Friday we have another Keeler design. Nothing too complicated about it (and in my experience with fuzz simpler is better)–basically an Electra running into a Big Muff tone stack, into some...
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