Description
The Cirrus Overdrive project is a clone of the ST-9 Super Tube Screamer, an incredibly rare Tube Screamer variant from the early 1980s. It?s a stock Tube Screamer with an added stage, a semi-parametric midrange control that delivers a fixed 24dB boost at a variable frequency.
The Mid-Boost potentiometer is not available as a pcb mountable potentiometer, it has to be wired with the included wire.
This kit contains the PCB and all necessary parts. The enclosure can be selected, please select 4 knobs for 6,3mm shaft separately.
Here is the bill of material: bill of material
This project is by Aion Electronics, in collaboration with Musikding. If you have any problems with the contents of the kit, please contact Das Musikding (Klaus). Since the modifications require some basic knowledge, this project is rather for more experienced builders.
Here is the direct link to the manual with layout and schematic:
Instructions