Saturday 7 September 2019

DOD FX101 Grind Rectifying Overdrive

*Edit  2019-09-12* 
Now verified. After spotting an error in the schematic, Rumble control acts as it should.
Also found out that different tapers for Fear and Burn controls gives a better feel, see notes under the layout.


DOD FX100 Integrated Tube Even Harmonic Overdrive

...say it fast ten times ;-)






Thursday 5 September 2019

DOD FX91 Bass Overdrive

For Alex
*Edit* Now verified by MR Alex. Thanks!

Univox/Shin Ei UD-50 Uni Drive w Aion "Monad" mods

This one has been modified for regular stompbox use and more useful controls. Also a feedback trimpot has been added to achieve more gain on tap. Aion's Monad projects suggest a 10k trimpot but I suggest a much larger value to be able to turn it into a heavy high gain fuzz.


Monday 2 September 2019

Earthquaker Devices Talons



Keeley 1962/1962X

*Edit 20190915* Now a verified layout of Keeley 1962/1962x. The only difference between them is LED or MOSFET clipping in the feedback loop. So the switch alter between 1962 mode and 1962x mode.
Schmidse noticed a couple of errors in the layout, a resistor and a cap across pin 6 and 7 of the op amp were missing. Managed to squeeze them by shifting around a few components and adding a link and a cut.