Rab Fuzz in a Vox Case

Here a Rab Fuzz pedal I built recently using a Vox wah case that came out rather nice (I thought): Though the Vox wah gets props for having shiny chrome, the shell feels much heavier than a Crybaby case so I’d have the give the Dunlop the edge on it’s being more practical.

Rab/Kay Fuzztone Finished Pedal

After installation of the conversion circuit board, it’s a Kay Fuzztone clone.   I’ve nicknamed it the “Trab Fuzz.”  :)  Here’s what the finished pedal looks like – basically a stock Crybaby wah except for the blue LED and extra knob on the side. It’s under the hood where things are clearly different from a [...]

Rab/Kay Fuzztone (Wah Conversion) Circuit Board

Basing this project around a Dunlop Crybaby Wah enclosure, I designed a circuit board to be a direct drop-in replacement for the wah circuit board.  Unlike the wah, the Fuzztone needs true bypass, so I built the bypass onto the board using a relay, and this way the same switch from the old wah can [...]

Testing the Rab Fuzz / Kay Fuzztone Circuit

Whenever I build I pedal I like to make a prototype version of the circuit on a breadboard.  This is a good way to test a schematic and to try different part values.  Here’s a quick look at the proto for the Rab/Kay Fuzz: A note on the diodes:  I show 1N914 in the schematic. [...]

Rab Fuzz Parts List

So getting together the parts for the Rab Fuzz pedal, or Kay Fuzztone clone we will need the following: Crybaby Wah, for the enclosure and potentiometer  (preferably with 100k pot still in good shape) Resistors, 1/4 Watt: 10k (x6), 100k (x5), 1.8k (x2), 22k (x2), 47k, 200k, plus one for LED (optional) Capacitors, Electrolytic (typical [...]

“Rab Fuzz” Project

Here’s something a little different from the other projects documented so far – a project designed for you to complete.  This thread will be devoted to building a “Rab Fuzz” or Kay Fuzztone clone from an old wah pedal enclosure.   The Rab Fuzz is used by  The Edge for the song “Elevation.”  You hear [...]