CMAT Mods Signa
Got a request for this one. It’s a barely modified Tube Screamer with a clipping switch to go between silicon and red LEDs. The switch is a SPDT on/off/on by the way. Gearmandude really seems to like it.
Month: October 2016
Hughes & Kettner Red Box Classic DI
Original info: The Hughes & Kettner Red Box Classic converts Line, Out and Speaker Out signals into balanced, frequen- cy-compensated signals, enabling a direct feed to a mixer. The Red Box Classic features two voicing options, a 4×12″ cabinet and a 2×12″ combo. You can find the original manual PDF here (must read!) Original schematic is … Read more
Paia 5730 Gator
Here is a great sounding Attack Delay / Noise Gate / Swell pedal. I’ve used a more common LM13700 instead of LM3080. You can find original project and scheamtic here. I could not find any videos for this effect but there are some sound samples available here. The original effect uses a momentary SPST footswitch. … Read more
Smallsound/Bigsound Team Awesome! Fuzz Machine
For Fuzz Friday here’s another cool design from Brian at Smallsound/Bigsound. It’s a unique silicon/germanium hybrid fuzz box with all kinds of options. This was traced over on Freestompboxes and Brian was kind enough to chime in and shed a little light on the circuit. There have been a couple versions of this circuit with both … Read more
Demeter Compulator
Here’s a really nice optical compressor from Demeter. It offers vintage studio compression that’s very transparent and a fairly simple simple build as well. The trimpot sets the gain of the compressor’s preamp stage. If the signal is distorted, turn down the trimmer till it’s clean. Here’s the schematic for reference.
Menatone None More Black
Here’s the None More Black from Menatone. It uses cascading JFET stages to produce a high gain distortion tones of the 80s all the way to modern metal tones. There are apparently some versions with and without a charge pump to run at 18v off a 9v supply. I had room for the charge pump, … Read more
Death by Audio Robot
For Fuzz Friday, here’s another wild and wacky one from DBA: The Robot is a low fidelity 8 bit pitch transposer with absolutely no feelings what-so-ever. It is completely synthetic and transforms any input into a spuree of resynthesized robot jargon. Originals need a dedicated power supply as the HT8950 chip runs off 2.4-4 volts … Read more
Valve Wizard Small Time
Here’s Valve Wizard’s take on the PT2399 delay. It’s very similar to most PT2399 delays out there, with a dual op-amp providing input and output buffering. This was designed with the tails function and it uses Valve Wizard’s usual J112 switching. Here’s his original schematic and explanation of the circuit. You can also use a … Read more
Earthquaker Devices Tone Reaper
From the source: The Tone Reaper is a vintage style fuzz device based on the “3 knob” bender. It’s a silicon/germanium hybrid capable of producing an array of tones from every bender era with careful tweaking of the tone and fuzz controls. From thin and spitty to a growling crunch, all with a midrange punch … Read more
Walrus Audio Mayflower
Here’s the Walrus Audio Mayflower, which is essentially a hybrid between the Tube Screamer and the Timmy (which has its roots in the TS already). Originals use a second dual opamp for buffering the voltage divider, which in this instance seems to just be unnecessary, so I’ve omitted that.