FTM (FOXX™ TONE MACHINE™) RTS PCB

The ready-to-solder PCB for our fOXX Tone Machine™ replica, one of the great old-time fuzz tones of the 1965-1975 era, known for its long sustain.

About the effect

The Tone Machine™ is a vintage fuzz with an octave-up switch, and it is a personal favorite here for its long sustain. Our circuit was taken from the Tone Machine™ section of an original fOXX Fuzz/Wah/Volume pedal; the two circuits are the same. The original used BC237B transistors, but in testing we heard no audible difference with 2N2222A, 2N3904, PN3565 or 2N5088, and the layout is designed for SIP sockets if you want to socket the transistors and try them yourself. There is also a parts layout and wiring diagram for a version with two footswitches and two LEDs.

Specs

• PCB dimensions: 6.1cm by 4.1cm
• Solder mask, plated-through holes and screen-printed part placement
• Transistor positions laid out for optional SIP sockets

Build resources

• Complete instructions for this PCB
• Tone Machine™ instructions, bill of materials, schematic and parts layout and wiring diagram
• Layout and wiring for 2 footswitches and 2 LEDs

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