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PROJECT NAME
GALE
BASED ON
Schaffer-Vega Diversity System
EFFECT TYPE
Booster & optical limiter
PROJECT SUMMARY
A pedal adaptation of the Schaffer-Vega Diversity System (SVDS), the first widely-used wireless system
for guitar, famously used by AC/DC, Van Halen, Kiss, and Pink Floyd.
Actual size is 2.3" x 1.86" (main board) and 1.78" x 0.86" (bypass board).
GALE BOOSTER / LIMITER
BUILD DIFFICULTY
Easy
DOCUMENT VERSION
1.0.1 (2019-11-26)
1
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Related Manuals for Aion Electronics GALE
Summary of Contents for Aion Electronics GALE
- Page 1 A pedal adaptation of the Schaffer-Vega Diversity System (SVDS), the first widely-used wireless system for guitar, famously used by AC/DC, Van Halen, Kiss, and Pink Floyd. Actual size is 2.3” x 1.86” (main board) and 1.78” x 0.86” (bypass board). GALE BOOSTER / LIMITER...
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Page 2: Table Of Contents
In the pedal adaptation, the actual wireless portions of the SVDS have been removed, leaving only the pregain, limiter, and output amplifier, which form the core analog signal path of the original unit. The Gale is a direct adaptation of the Storm with no changes except for some added power filtering. USAGE The Gale has the following controls: •... -
Page 3: Parts List
100n Film capacitor, 7.2 x 2.5mm 10uF Electrolytic capacitor, 5mm 100n Film capacitor, 7.2 x 2.5mm 10uF Electrolytic capacitor, 5mm 100uF Electrolytic capacitor, 6.3mm Power supply filter capacitor. 100n MLCC capacitor, X7R Power supply filter capacitor. GALE BOOSTER / LIMITER... - 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. GALE BOOSTER / LIMITER...
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Page 5: Build Notes
“isolator threshold” on the PCB. This capacitor is very commonly used in similar optical compressor/limiter circuits. In the Gale project, the jumpers have been omitted, so you can just decide whether to include the capacitors or leave them off. On the unit that was traced, both jumpers were unpopulated, so both capacitors were disconnected. -
Page 6: Schematic
SCHEMATIC 1N5817 100uF 10uF 100n 100n 100n 10uF 100n IC1A RC4558P LM386N-1 OMIT 10uF 120pF 10uF 100n IC1B RC4558P VACTROLB 100kA THRESHOLD BAT42 BAT42 OMIT BAT42 BAT42 GALE BOOSTER / LIMITER... -
Page 7: Drill Template
0.625” 0.625” ø3/8” ø3/8” ø1/2” VOLUME PREGAIN x: -0.65, y: +1.71 x: 0.65, y: +1.71 ø9/32” ø9/32” THRESHOLD x: 0, y: +0.66 ø9/32” CENTER (0,0) FOOTSWITCH x: -0.775, y: -1.20 x: 0, y: -1.20 ø5/16” ø15/32” GALE BOOSTER / LIMITER... -
Page 8: Enclosure Layout
ENCLOSURE LAYOUT Enclosure is shown without jacks. See next page for jack layout and wiring. 125B GALE BOOSTER / LIMITER... -
Page 9: Wiring Diagram
WIRING DIAGRAM N.C. GND OUT GND +V +V JACK GND JACK GND GND PCB 125B GALE BOOSTER / LIMITER... -
Page 10: Document Revisions
The guitar effects industry needs more transparency, not less!) DOCUMENT REVISIONS 1.0.1 (2019-11-26) Values of R5 and R6 were reversed in the parts list. R5 should be 1k and R6 should be 10k. The schematic and Google spreadsheet were correct. 1.0.0 (2019-10-18) Initial release. GALE BOOSTER / LIMITER...
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