Museum of Lost Effects:
Interfax Harmonic Percolator

Few guitar pedals can rival the cult cachet of the Harmonic Percolator, a singularly ugly distortion stompbox produced in minuscule numbers in the early ’70s by Interfax, a small company based in Milwaukee, Wisconsin. And guess what? They sound ugly too, though they’re ugly in a cool and useful way.

They don’t get […]

Museum of Lost Effects:
The Systech Harmonic Energizer

A homely clone cowers in the shadow of a ramshackle original.

Okay, here’s an old weirdo I’ve been meaning to write about for ages. The Systech Harmonic Energizer is an ultra-rare filter/distortion effect from the ’70s that takes the fuzz-wah formula in some interesting directions. Its signature is edgy, ultra-resonant filter sounds. You’re […]