Octave
Effdub Audio What the Fuzz?!
A simple and nasty octave up fuzz based on Tim Escobedos Push Me Push You fuzz. But here, the input transistor is replaced with a LM386 audio amplifier for more gain that pushes the transistors harder. Also, there is also a simple treble cut tone control added.
Blackout Effectors Crystal Dagger
Here is a cool one. It is essentally two separate circuits in one box, a fuzz with a switchable octave up and a tweaked Small Stone phaser. Original had separate boards as well and if you wish you can house them in separate enclosures. If you decide to house them in one enclosure, the fuzz … Read more
Earthquaker Devices Data Corrupter
Think this is going to stay unverified for a while…:o) Schematic and info HERE.
M3 Emthree Mini Synthy
This is an obscure octave down fuzz from Italy, manufactued in 70’s. The three pontentiometers adjust normal fuzz, one octave down and two octave down. Note that I made small mod to this one since the original SAJ110 IC is long gone obsolete and expensive. It is replaced with a CD4024 binary counter and divider … Read more
Multivox / Big Jam SE-4 Octave Box
A pretty cool variation of MXR Blue Box with a few extra bits and features. The only thing that is a bit unclear is the switch that selects between one octave down, 1/2 octave down and 2 octave down. Original has a 3 position slider switch but I would like to convert to a toggle … Read more
MXR Blue Box w. mods
Couldn’t resist to add another layout for the Blue Box since there is a bunch of mods online… Octave switch that toggles between stock two octave down setting and one octave down setting. Treble boost switch that lifts up 10nF low pass filter cap before the Output control. Should result in an overall brighter and … Read more
