Wednesday, March 18, 2026

RUSH: Pep Box

One that I've probably overlooked a little, given its place in the early history of English fuzz pedals - which was likely inspired by the Maestro...  

There was a three-transistor version prior to this called "Fuzzy" which by all accounts is a Maestro.   The later versions dropped the input buffer and made the jump from 3 to 9 volts.

These are gated nasty wonders of the fuzz world.


RUSH PEP BOX - GE VERSION

RUSH PEP BOX - GE VERSION vero layout

The 56k resistor is sitting across the 500k volume pot, so you could just drop the pot down to 50k and lose the extra part.  

RUSH PEP BOX - SI VERSION

Later versions transitioned to silicon devices and became more widely recognised in their large red WEM enclosures.  Rush had originally manufactured these units for WEM, before the company reportedly parted ways with him while continuing to use his circuit design.  


Further reading:  















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