Wednesday, August 26, 2020

WEM: Pep Box, Point to Point Layout

The WEM Pep Box, most famously used by the Beatles back in the day - a nice early English fuzz.

WEM PEP BOX (GERMANIUM) - POINT-TO-POINT LAYOUT

If you don't have a 500k pot for volume, use a 50k pot and remove the 56k resistor from V3 to ground.  The earlier versions used 12.5uf capacitors, so 10uf caps will be fine.  Like a few things of this vintage, you may need to play with biassing a little, or it could just fire up and work first go.  There should be enough room to sneak in a 1M resistor to ground on the input too if you would like to include that as a modern addition.


WEM Pep Box germanium point to point p2p layout


WEM PEP BOX (SILICON) - POINT-TO-POINT LAYOUT

note:  the 100k trimmer was a 56k resistor in some units.

WEM PEP BOX SILICON - POINT TO POINT LAYOUT










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