TOCT Instructions
Version 2016April14
Copyright 2014 JD Sleep
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This is a replica of the octave stompbox we cannot mention by name referred to as
TOCT in these documents. This Octave/Fuzz is extreme by most standards. Thanks
to Fuzz Central for some of the information to make this a Negative-Ground circuit.
The transistor selection can make some difference in the sound, but it is not critically
important to getting a good sound.
We have added a PreGain feature on this project since we noticed that the Octave
sound is hard to achieve without tuning down the input some. For full out insanity,
leave the PreGain and Intensity controls on full. Turn down both PreGain and
Intensity to get good Hendrix type Octave sounds. There is an option for a toggle
switch to select between Fuzz and Octave, but we built this one without since we
wanted a straight up Octave box. With Intensity and PreGain on full, the Octave is
somewhat "lost in the storm", with sounds of very, very intense fuzz. You should be
able to get lots of controlled feedback and swells on most amps even at moderate
and low volume levels.
Positioning of Q1. There is a boutique version of this circuit that has the Q1
transistor reversed (emitter to collector reversed). The circuit works similar and has a
slightly different sound when you install Q1 like this. The first version of our PCB had
the transistor reversed on the screen print on the PCB and the older diagrams had it
like this. We decided to change it back to the original way. Follow the diagrams for
the original placement or for a modification, you can reverse Q1 and see if you like it.
This is a relatively simple effect to build. Use the project documents provided,
starting with the General Build Instructions. Note that if you prefer, it can easily be
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