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PROJECT NAME
CINDER
BASED ON
Amptweaker Tight Fuzz
EFFECT TYPE
Transistor fuzz
PROJECT SUMMARY
A vintage-inspired fuzz/booster with several tone options, most notably a switch to select between
germanium and silicon transistors.
Actual size is 2.3" x 2.42" (main board) and 1.78" x 0.86" (bypass board).
CINDER HYBRID FUZZ
BUILD DIFFICULTY
Intermediate
DOCUMENT VERSION
1.0.0 (2023-11-24)
1

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Summary of Contents for aion Cinder

  • Page 1 Transistor fuzz 1.0.0 (2023-11-24) PROJECT SUMMARY A vintage-inspired fuzz/booster with several tone options, most notably a switch to select between germanium and silicon transistors. Actual size is 2.3” x 2.42” (main board) and 1.78” x 0.86” (bypass board). CINDER HYBRID FUZZ...
  • Page 2: Table Of Contents

    The Cinder is based on our trace of the Tight Fuzz, which you can read about in our tracing journal. The only difference is the omission of the “SideTrak” effects loop that is engaged along with the pedal.
  • Page 3: Parts List

    Can substitute 47k. Metal film resistor, 1/4W Metal film resistor, 1/4W Input pulldown resistor. LEDR Metal film resistor, 1/4W LED current-limiting resistor. Adjust value to change LED brightness. 47pF MLCC capacitor, NP0/C0G 100n Film capacitor, 7.2 x 2.5mm CINDER HYBRID FUZZ...
  • Page 4 Linear taper. VOLUME 100kA 16mm right-angle PCB mount pot Audio (log) taper. EDGE SPDT on-on Toggle switch, SPDT on-on TRANS. DPDT on-on Toggle switch, DPDT on-on TONE SW. DPDT on-on Toggle switch, DPDT on-on LED, 5mm, red diffused CINDER HYBRID FUZZ...
  • Page 5 Switchcraft 111X or equivalent. 1/4" mono 1/4" phone jack, closed frame Switchcraft 111X or equivalent. 2.1mm DC jack, 2.1mm panel mount Mouser 163-4302-E or equivalent. 3PDT Stomp switch, 3PDT 125B Enclosure, die-cast aluminum Can also use a Hammond 1590N1. CINDER HYBRID FUZZ...
  • Page 6: Build Notes

    We’ve included the nearest substitutes in the Notes column of the parts list. However, if you’re just using the Mouser spreadsheet to order, they’re the same price as standard types, so we recommend just using the original values. CINDER HYBRID FUZZ...
  • Page 7: Schematic

    100n 22k1 2N5088 EDGE IC1A GE/SI A 6k81 2N5088 22k1 TL072P 47pF AC127 22uF GE/SI B 100k TONE SW. 4.7uF 22uF IC2B IC1B TL072P TL072P 150k 150k 22uF IC2A TL072P 4k75 100n 220k TONE SW. 100n 330k CINDER HYBRID FUZZ...
  • Page 8: Drill Template

    TIGHT VOLUME TRANSISTOR x: 0 y: +0.41 ø1/4” x: -0.775, y: +0.41 x: +0.775, y: +0.41 CENTER (0,0) ø9/32” ø9/32” x: 0 y: -0.24 ø1/4” EDGE FOOTSWITCH x: -0.775, y: -1.775 x: 0, y: -1.775 ø5/16” ø15/32” CINDER HYBRID FUZZ...
  • Page 9: Enclosure Layout

    ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B CINDER HYBRID FUZZ...
  • Page 10: Wiring Diagram

    WIRING DIAGRAM NC OUT GND +V +V JACK GND JACK GND GND PCB 125B CINDER HYBRID FUZZ...
  • Page 11: 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 (2023-11-24) Initial release. CINDER HYBRID FUZZ...