Electro-Harmonix

Schematics for effects and other items made by Electro-Harmonix from the late 60's to the early 80's. Schematics for new and reissue items are not available.

16 second Digital Delay schematic

Dated: 11/23/83 2 pgs
$8.00
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Attack Decay schematic

$5.00
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Attack Equalizer schematic

Dated: 10/14/75
$5.00
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Axis fuzz schematic

Drawn and verified by The EH Man
$5.00
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Bad Stone phase shifter (2 knob) schematic

Covers 2 knob version Includes parts list 2 pgs
$8.00
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Bad Stone phase shifter (3 knob and pedal) schematic

Covers 3 knob and pedal versions
$5.00
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Bassballs schematic

Dated: 4/12/78
$5.00
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Big Muff Pi schematic

Version with fs36999 transistors
$5.00
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Big Muff Pi schematic

Dated: 10/15/75
$5.00
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Big Muff Pi schematic

Dated: 3/77 Version with 741 and 4558 op-amps
$5.00
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