Based on the very rare WEM Project V fuzz pedal as used by Brian Eno on 'Here come the Warm Jets' and other recordings.
This is a modified version of the Project V, I breadboarded the circuit 'stock' first and decided to make a few changes, mainly getting rid of the drive/edge output toggle switches.
Instead of the switches I added a control to dial in the 'edge' tone, quite similar to the 'Timbre' control on a Buzzaround.
The 2 bias controls set the gain and texture of the circuit, I prefer to mount the texture control externally and the gain control internally.
There are silicon/germanium hybrids with a high pass filter tone control (more trebly)
A 9V DC input is fitted as standard, the circuit is negative ground and needs a negative tip 9V DC adaptor or battery.
Cases are powdercoated by Bournes, with the labelling screenprinted by Missionprint, both local Birmingham based firms.
The Warmjet V PCBs were designed by Stuart Castledine.