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PROJECT NAME
XIPHOS
BASED ON
King Tone Heavyhand
EFFECT TYPE
Amp-like overdrive
PROJECT SUMMARY
A single-channel adaptation of side B of the popular Duellist dual pedal, based on a Marshall
Bluesbreaker with hot-rodded features.
Actual size is 2.3" x 1.86" (main board) and 1.78" x 0.87" (bypass board).
XIPHOS AMP OVERDRIVE
BUILD DIFFICULTY
Easy
DOCUMENT VERSION
1.0.1 (2022-05-18)
1
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Table of Contents
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Summary of Contents for aion XIPHOS
- Page 1 1.0.1 (2022-05-18) PROJECT SUMMARY A single-channel adaptation of side B of the popular Duellist dual pedal, based on a Marshall Bluesbreaker with hot-rodded features. Actual size is 2.3” x 1.86” (main board) and 1.78” x 0.87” (bypass board). XIPHOS AMP OVERDRIVE...
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Page 2: Table Of Contents
“Fat” toggle mode for a new “Edge” mode. The Xiphos unifies these two circuits, porting the features from the Duellist that were not on the original Heavyhand. An additional diode has been added in one direction on a DIP switch, making the stock clipping mode asymmetric when active. -
Page 3: Parts List
4.7uF electrolytic in original. See build notes. Film capacitor, 7.2 x 2.5mm Film capacitor, 7.2 x 2.5mm Film capacitor, 7.2 x 3.5mm 100uF Electrolytic capacitor, 6.3mm Reference voltage filter capacitor. 100uF Electrolytic capacitor, 6.3mm Power supply filter capacitor. XIPHOS 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. XIPHOS AMP OVERDRIVE...
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Page 5: Build Notes
Since the two lower pots are very close to the lower toggle switch, it’s recommended to use 1/2” knobs for these two. The upper two knobs can be 3/4”. This is the cosmetic look we used for the Penumbra Bass Fuzz, which uses the same drill template. XIPHOS AMP OVERDRIVE... -
Page 6: Schematic
SCHEMATIC 100R 1N5817 100uF 100uF 100n IC1A RC4558P 100pF IC1B RC4558P 1N914 STYLE 133k DRIVE 150kC 9k53 220k BA282 CLIPPING XIPHOS AMP OVERDRIVE... -
Page 7: Drill Template
STYLE x: 0, y: +1.06 ø1/4” LEVEL CLIPPING DRIVE x: -0.775, y: +0.41 x: 0, y: +0.41 x: +0.775, y: +0.41 ø9/32” ø1/4” ø9/32” CENTER (0,0) FOOTSWITCH x: -0.775, y: -1.20 x: 0, y: -1.20 ø5/16” ø15/32” XIPHOS AMP OVERDRIVE... -
Page 8: Enclosure Layout
ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B XIPHOS AMP OVERDRIVE... -
Page 9: Wiring Diagram
WIRING DIAGRAM N.C. N.C. OUT GND +V +V JACK GND JACK GND GND PCB 125B XIPHOS 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 1.0.1 (2022-05-18) Corrected description of asymmetric diode switch function. 1.0.0 (2022-05-13) Initial release. XIPHOS AMP OVERDRIVE...
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