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PROJECT NAME
ACHILLES
BASED ON
Analogman Prince of Tone
EFFECT TYPE
Amp-like overdrive
PROJECT SUMMARY
A single-channel adaptation of the legendary King of Tone, with a few added features not found in the
original dual-channel pedal.
Actual size is 2.3" x 1.86" (main board) and 1.78" x 0.87" (bypass board).
ACHILLES AMP OVERDRIVE
BUILD DIFFICULTY
Easy
DOCUMENT VERSION
1.0.0 (2022-04-08)
1
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Table of Contents
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Summary of Contents for aion ACHILLES
- Page 1 PROJECT SUMMARY A single-channel adaptation of the legendary King of Tone, with a few added features not found in the original dual-channel pedal. Actual size is 2.3” x 1.86” (main board) and 1.78” x 0.87” (bypass board). ACHILLES AMP OVERDRIVE...
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Page 2: Table Of Contents
11 Document Revisions INTRODUCTION The Achilles Amp Overdrive is based on the Analogman Prince of Tone, the single-channel adaptation of the King of Tone that was first released in 2012. Unlike the King of Tone, the Prince was designed for mass production and is assembled in China. As a result, it’s much more affordable as well as being readily available (the King of Tone has a 4 ½-year waiting list). -
Page 3: Parts List
Film capacitor, 7.2 x 2.5mm Film capacitor, 7.2 x 3.5mm Electrolytic capacitor, 4mm 100uF Electrolytic capacitor, 6.3mm Reference voltage filter capacitor. 100uF Electrolytic capacitor, 6.3mm Power supply filter capacitors. 100n MLCC capacitor, X7R Power supply filter capacitors. 1N5817 Schottky diode, DO-41 ACHILLES AMP OVERDRIVE... - Page 4 Switchcraft 112BX 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. ACHILLES AMP OVERDRIVE...
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Page 5: Build Notes
However, note that since the diodes are shared between the two settings and “relocated” in each position, you cannot use an on-on-on switch to use both sets of diodes or it will cause issues with the circuit. ACHILLES AMP OVERDRIVE... -
Page 6: Schematic
SCHEMATIC 100R 1N5817 100uF 100uF 100n DRIVE 100kB 100k CLIPPING A 100pF 47pF 100k SW1B 220k IC1A IC1B JRC4580D JRC4580D ACHILLES AMP OVERDRIVE... -
Page 7: Drill Template
VOLUME DRIVE x: -0.65, y: +1.71 x: 0.65, y: +1.71 ø9/32” ø9/32” CLIPPING TONE x: -0.85, y: +0.66 x: 0, y: +0.66 ø1/4” ø9/32” CENTER (0,0) FOOTSWITCH x: -0.775, y: -1.20 x: 0, y: -1.20 ø5/16” ø15/32” ACHILLES AMP OVERDRIVE... -
Page 8: Enclosure Layout
ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B ACHILLES AMP OVERDRIVE... -
Page 9: Wiring Diagram
WIRING DIAGRAM N.C. N.C. OUT GND +V +V JACK GND JACK GND GND PCB 125B ACHILLES AMP OVERDRIVE... -
Page 10: 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 (2022-04-08) Initial release. ACHILLES AMP OVERDRIVE...
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