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PROJECT NAME
TORUS
BASED ON
Mid-Fi Demo Tape Fuzz
EFFECT TYPE
Distortion / Fuzz
PROJECT SUMMARY
A thick fuzz/distortion circuit designed to replicate the low-budget garage tones of an overloaded
cassette recorder.
Actual size is 2.3" x 1.86" (main board) and 1.79" x 0.86" (bypass board).
TORUS LO-FI FUZZ
BUILD DIFFICULTY
Beginner
DOCUMENT VERSION
1.0.0 (2019-08-04)
1

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Summary of Contents for aion TORUS

  • Page 1 Distortion / Fuzz 1.0.0 (2019-08-04) PROJECT SUMMARY A thick fuzz/distortion circuit designed to replicate the low-budget garage tones of an overloaded cassette recorder. Actual size is 2.3” x 1.86” (main board) and 1.79” x 0.86” (bypass board). TORUS LO-FI FUZZ...
  • Page 2: Table Of Contents

    INTRODUCTION The Torus Lo-Fi Fuzz is based on the Demo Tape Fuzz by Mid-Fi Electronics. The Demo Tape Fuzz is a throwback to the days of running a guitar into a cassette recorder and cranking the gain to overload it and create distortion.
  • Page 3: Parts List

    Metal film resistor, 1/4W Metal film resistor, 1/4W Metal film resistor, 1/4W Metal film resistor, 1/4W 100R Metal film resistor, 1/4W LEDR Metal film resistor, 1/4W 1N5817 Schottky diode, DO-41 JRC4558D Operational amplifier, DIP8 IC1-S DIP-8 socket IC socket, DIP-8 TORUS LO-FI FUZZ...
  • Page 4 DC jack, 2.1mm panel mount Mouser 163-4302-E or equivalent. BATT Battery snap 9V battery snap Optional. Use the soft plastic type—the hard-shell type will not fit. 3PDT Stomp switch, 3PDT 125B Enclosure, die-cast aluminum Can also use a Hammond 1590N1. TORUS LO-FI FUZZ...
  • Page 5: Schematic

    SCHEMATIC 100R 1N5817 100uF 100n 47uF BASS 100kB IC1A JRC4558D IC1B JRC4558D 10pF 500kB TREBLE 470R 470k TORUS LO-FI FUZZ...
  • Page 6: Drill Template

    VOLUME GAIN x: -0.65, y: +1.71 x: 0.65, y: +1.71 ø9/32” ø9/32” BASS TREBLE x: -0.65, y: +0.41 x: 0.65, y: +0.41 ø9/32” ø9/32” CENTER (0,0) FOOTSWITCH x: -0.775, y: -1.20 x: 0, y: -1.20 ø5/16” ø15/32” TORUS LO-FI FUZZ...
  • Page 7: Enclosure Layout

    ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B TORUS LO-FI FUZZ...
  • Page 8: Wiring Diagram

    GND +V +V JACK GND JACK GND GND PCB 125B Shown with optional 9V battery. If battery is omitted, both jacks can be mono rather than one being stereo. Leave the far-right lug of the DC jack unconnected. TORUS LO-FI FUZZ...
  • Page 9: Document Revisions

    (In other words: you don’t have to go out of your way to advertise the fact that you use these PCBs, but please don’t go out of your way to hide it. The guitar effects industry needs more transparency, not less!) DOCUMENT REVISIONS 1.0.0 (2019-08-04) Initial release. TORUS LO-FI FUZZ...

Table of Contents