This pedal is based on the original John Hornby Skewes Zonk Machine MKI pedal produced in Leeds, England, in 1965 – 1966. The Zonk machine is tonally similar to the MKI Tone Bender offering Driven Fuzz tones. Based on limited production originals are exceptionally scarce.

BPC Compact Series Zonk Machine MKI

• Small Casing Variant
• Fuzz and swell controls
• Specially selected transistors
• Limited production
• Certificate of authenticity
• Negative 9V Power inlet

Transistor Tone Guide

OC75: Bright and high gain, snappy in tone, sounds raspy in a 2 transistor circuit such as the MKI.5
OC44: Bright and Driven Tone

*** Please note All Compact Series Pedals require their own isolated 9V power supply. This is due to the nature of the PNP Transistors which cannot be used with a daisy-chained supply.

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