aion Cadmus Quick Start Manual

Dual-stage boost

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PROJECT NAME
CADMUS
BASED ON
ZVEX Super Duper
EFFECT TYPE
Dual-stage boost
PROJECT SUMMARY
A two-channel boost composed of identical MOSFET gain stages. The boosts can be cascaded in series
or selected independently.
Actual size is 2.3" x 1.57" (main board) and 2.3" x 1.05" (bypass board).
CADMUS DUAL BOOST
BUILD DIFFICULTY
Easy
DOCUMENT VERSION
1.0.0 (2023-03-24)
1

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Summary of Contents for aion Cadmus

  • Page 1 1.0.0 (2023-03-24) PROJECT SUMMARY A two-channel boost composed of identical MOSFET gain stages. The boosts can be cascaded in series or selected independently. Actual size is 2.3” x 1.57” (main board) and 2.3” x 1.05” (bypass board). CADMUS DUAL BOOST...
  • Page 2: Table Of Contents

    9 Document Revisions INTRODUCTION The Cadmus Dual Boost is based on the ZVEX Super Duper, which is two of their SHO boost circuits in series and independently switchable. The SHO is an extremely simple MOSFET booster, small enough that even two of them together have fewer components than most single effects.
  • Page 3: Parts List

    1/4" phone jack, closed frame Switchcraft 111X or equivalent. 2.1mm DC jack, 2.1mm panel mount Mouser 163-4302-E or equivalent. A.FSW 3PDT Stomp switch, 3PDT B.FSW 3PDT Stomp switch, 3PDT 125B Enclosure, die-cast aluminum Can also use a Hammond 1590N1. CADMUS DUAL BOOST...
  • Page 4: Build Notes

    180 degrees from the orientation shown on the PCB silkscreen. R23, C18 and C19 The initial run of Cadmus PCBs had a few parts on the PCB mislabeled as follows. • C5 (main board) is labeled C18. It should be 100uF.
  • Page 5: Schematic

    1N5817 100uF 100n CH.A_A FROM INPUT CH.B_A JACK CH.A CH.B FROM CH.A_B FX 1 OUT CH.B_C CH.A FROM CH.B_B CH.B OUTPUT JACK CH.A_C BYP_GND BYP_GND CH.A IN CH.A OUT CH.B IN BS170 BS170 CH.B OUT 1N5239 1N5239 CADMUS DUAL BOOST...
  • Page 6: Drill Template

    0.65, y: +1.71 ø9/32” ø9/32” VOLUME x: 0, y: +0.66 ø9/32” CENTER (0,0) x: -0.765, y: -1.10 x: +0.765, y: -1.10 ø5mm ø5mm CH. B CH. A x: -0.765, y: -1.675 x: -0.765, y: -1.675 ø15/32” ø15/32” CADMUS DUAL BOOST...
  • Page 7: Enclosure Layout

    ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B CADMUS DUAL BOOST...
  • Page 8: Wiring Diagram

    WIRING DIAGRAM A.IN A.OUT B.IN B.OUT CH.A GND +V +V JACK GND JACK CH.A CH.B CH.B 125B CADMUS DUAL BOOST...
  • 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 (2023-03-24) Initial release. CADMUS DUAL BOOST...

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