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Univox Super Fuzz - tone mod
For #FuzzFriday here's the Univox Super Fuzz (again) with a modified tone stack. I'm in the middle of building this one and wanted more control over the tone than just the on/off switch of the...
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John Hollis Ultra Flanger
Got a request for a flanger effect, and hadn't seen many layouts for the John Hollis Ultra Flanger (that didn't have tiny thin traces anyway), so I thought I'd give it a go. For the record: flangers...
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MXR Noise Gate
Got a request for this one. The schematics that come up with a Google search are all wrong apparently, but it looks like the good people on FSB have figured things out. Here's a link the the discussion...
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DeadAstronaut X Fuzz
It's Fuzz Friday! Here's a cool doom-style fuzz from DeadAstronaut over on the DIYSB forum. Pretty simple and should fit in a 1590a. Schematic and a ton of discussion can be found here.
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Earthbound Audio Supercollider
Happy Pi day! The day calls for at least some version of the Big Muff Pi, so here's the Supercollider. I think Cody's asked me to lay this one out like 3 times and I finally remembered to do it. haha...
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Klon Centaur - True Bypass
Here's the Klon again. I wanted one with board mounted pots and for a smaller enclosure. You might be able to fit this in a 1590B with low profile jacks, but it will easily fit in a 125B. It's designed...
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Cornish Buffer
Got a request for the Pete Cornish Buffer in dual form like the one I did with the Klon Buffer. So here's both a single and a dual Cornish Buffer. The original uses a 1N5401 for polarity protection,...
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JHS Honeycomb Deluxe
Here's JHS' Honeycomb Deluxe tremolo. Or something close to it anyway. It's a modified EA Tremolo with an extra switch to control speed and a extra footswitch to switch between speed controls. Ian...
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Mad Professor Stone Grey Distortion
Here's the Stone Grey Distortion from Mad Professor. It's reminiscent of the Distortion +/OD250 circuit, but with a hex inverter stuck after the opamp. It also uses 2 JFETs in the feedback loop of the...
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Zvex Fat Fuzz Factory
For Fuzz Friday, here's a layout for the Fat Fuzz Factory in a 1590B in a more traditional orientation. All pots are board mounted as well as the Fat Switch. For C1 and C2 you'll probably want to...
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Death by Audio Evil Filter
Here's an unreleased version of the Evil Filter. It's similar but not quite the same as the original. The schematic was pulled from a video interviewing DBA's Oliver Ackermann and was redrawn here....
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Wampler Faux Spring Reverb
The Faux Spring Reverb, like many pedal reverbs is based around a Belton reverb module. Originally it used the BTDR-1 (which is massive), but in this layout I've adapted it for the newer and smaller...
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Keeley Fuzz Head
Over a decade ago Robert Keeley was kind enough to share this design with the DIY community. It's a fairly unique fuzz, with a germanium treble booster at the beginning, a differential amplifier in the...
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DeadAstronaut Bassman Preamp
Here's one for my fellow bassists out there. It's a transistor-ized version of the Fender Bassman preamp as modified by DeadAstronaut over on DIYSB. It's laid out for board mounted pots and switch and...
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CultureJam Box of Hall
Here's a great sounding reverb designed by CultureJam, built around the typical Belton BTDR-2 reverb brick. I've laid it out for onboard pots and the BTDR-2 being mounted from the solder-side of the...
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Schaller Fuzz
For Fuzz Friday I give you a fun little circuit built in West Germany in the late 60s and early 70s–the Schaller Fuzz. It's a silicon Fuzz Face variant and sounds rather good. Originals used BC109B and...
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Wampler Faux Analog Echo
Today's layout is Brian's take on the PT2399-based delay. It's similar to many other PT delays, but is it's own beast. It can do anything from simple slapback delay to up to around 500 milliseconds of...
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BearFoot FX Blueberry Bass Overdrive
Being primarily a bass player myself, I've wanted to build this one for a while, but didn't really feel like messing with all the off board wiring of my first layout of this circuit. So I've drawn up a...
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Austone Textone Fuzz Nutz
Here's a cool circuit for Fuzz Friday. It's supposed used by Billy Gibbons from time to time and it's a silicon Tone Bender of sorts. It uses 2SC1815Y transistors that have a gain range of 120-240 hfe....
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Buffered Bypass
Prepare for a bit of rambling: I was looking through the de-goup thread for the Cornish G2 over on Freestompboxes.org and was intrigued by the buffered bypass switching that's used on that pedal....
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