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One-Knob Noise Gate
Found this one over on the Tagboard forum and thought it would be a good addition here. It's a simple noise gate with minimal parts count that can easily fit in a 1590a. I've laid it out for a board...
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Catalinbread Dirty Little Secret
Here's the original Dirty Little Secret from Catalinbread. It's a great sounding overdrive that emulates the sound of a Marshall JTM45. The Rock/Rawk switch goes between two different gain settings,...
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Death by Audio Fuzz War II
Here's the newer 4 transistor version of the Fuzz War for Fuzz Friday. Apparently the boys at DBA thought a modified Big Muff was a better circuit. Much like the Supa Tonebender, the first gain stage...
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Creepy Fingers DoomiDrive
Here's a cool dirt box from Creepy Fingers. It's essentially a modified Fuzz Face with an output buffer. The Bottom control pans between 2 input capacitors and offers a wide range of tones throughout...
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Tails Bypass Looper
Someone from the Offset forum asked me about building a looper pedal that when used with a delay pedal would have "tails." For those who don't know, "tails" is when a delay is switched off, but the...
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Korg MS-20 Filter
Switching it up this week and doing a Filter Friday. This one could be used for both synth and guitar/bass. It's a cool filter effect based around the LM13600/13700.
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DOD 230 Optical Noise Gate
Not a lot out there on this one. It's a optical noise gate DOD produced in the late 70s and works best at the beginning of your signal chain. The original had a very strange way of bypass switching,...
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Hungry Robot Mosfet Screamer
About a month or so ago, Hungry Robot Pedals made a limited run of overdrives called the Mosfet Screamer. As the name implies, it's based of the classic Ibanez Tube Screamer, but with a fair amount of...
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Evil Harmonic Overdriver
For Fuzz Friday here's a really cool circuit designed by Lubdar over on the Madbean forum. It's inspired by Death by Audio designs and can go from overdrive to full on fuzz. If you can't get a DBA...
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Wampler Plexi Drive
I'll give you heads up now. This is going to be Wampler Week. I laid out the Plexi-Drive a long while ago, but I wanted to give this "Marshall-in-a-box" circuit another go with board mounted pots and...
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Wampler Cranked AC
Another amp emulation overdrive from Wampler that's supposed to sound like (you guessed it) a cranked Vox. This one has been discontinued, but was very popular. It's very similar to the Plexi-Drive,...
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Wampler Velvet Fuzz
The Velvet Fuzz is a unique fuzz that combines amp emulation and 2 different selectable fuzz tones. The toggle selects between a LM386 (Tight) circuit, and a 2N5089 (Big) circuit. These then push a...
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Earthquaker Devices Grey Channel
This is the 400th layout on the blog. Kinda hard to believe I've drawn up that many. O_OThe cool dudes from Akron cooked up the Grey Channel, a dual overdrive based on the classic grey spec DOD 250....
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Menatone Red Snapper
Gotten a few requests for this one. It's a based on the Tube Screamer, but without the input and output buffers and a modified tone section. I've laid it out for board mounted pots and the electrolytic...
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Catalinbread Merkin Fuzz
Here's an older one from Catalinbread, but a great sound fuzz for Fuzz Friday. It's based on the Mosrite FuzzRite but adds another gain stage after the Texture (Depth in the original FuzzRite) control....
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Valve Wizard Equinox II
Here's a reverb circuit that doesn't require a Belton brickāthe Equinox II by Valve Wizard. It uses 2, PT2399 delay chips with a pretty standard input/output buffer built around a TL072. The original...
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Menatone Blue Collar
Here's an oldie but a goodie from Menatone. The Blue Collar was released around the same time as the Red Snapper and is more compressed and focused in comparison. It's also based around the Tube...
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Apocalypse Audio Thundertone
Fuzz Friday! Here's a cool fuzz based on the old Supro Thunderbolt amp using NPN germanium transistors by RnFR from the Apocalypse Audio blog. Here's what he had to say about it:I have been thinking...
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Rockett Flex Drive
Here's another interesting take on the Tube Screamer circuit from Rockett Pedals. The input and output buffers are removed and there's an added JFET gain stage following the IC. There are also switches...
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CultureJam Triton Delay
Here's nice delay from CultureJam. It's based on the Rebote 2.5 delay and has a lot in common with many other PT2399 delays. However...The Triton, diverges from the base concept by adding a second...
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