Akashic Guitar effects circuit lookup
TUNE 1TUNE 2

Enclosure not stated · 2 knobs

Experimentalists Anonymous

Old-style ring mod

Category
Ring Mod / Synth· Ring Modulators and Frequency Shifters
Controls
Tune 1 · Tune 2
Price
see vendor
Tags
Ring Modulators and Frequency Shifters
Open the schematic at Experimentalists Anonymous

Schematic

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Parts list 27 rows

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Check before you build · 1 value the reader of this schematic was not sure of
  • R1/R2: drawn as variable resistors labeled R1/R2; trimmer vs panel pot not stated
RefValueNormalizedTypeNotes
Resistors 5
×1470470output filter series resistor, undesignated; read from the schematic by eye
×2100k100kundesignated; one per oscillator (feedback/bias); read from the schematic by eye
×22.7k2.7kundesignated; oscillator 1 feedback and bias divider; read from the schematic by eye
×22.2k2.2kundesignated; one per oscillator, to Tune pot; read from the schematic by eye
×24.7k4.7kundesignated; one per oscillator; read from the schematic by eye
Capacitors 5
×1.1uF100noutput filter, undesignated; read from the schematic by eye
×1.05uF50noutput filter, undesignated; read from the schematic by eye
×24.7uF4.7uelectrolytic, carrier injection into R1/R2 wipers, undesignated; read from the schematic by eye
×2100uF100uelectrolytic, supply decoupling and bias bypass, undesignated; read from the schematic by eye
×6.0036uF3.6nundesignated; three per phase-shift oscillator; read from the schematic by eye
Diodes 12
D1DiodeDIODEno part number given; ring modulator 1; read from the schematic by eye
D2DiodeDIODEno part number given; read from the schematic by eye
D3DiodeDIODEno part number given; read from the schematic by eye
D4DiodeDIODEno part number given; read from the schematic by eye
D5DiodeDIODEno part number given; ring modulator 2; read from the schematic by eye
D6DiodeDIODEno part number given; read from the schematic by eye
D7DiodeDIODEno part number given; read from the schematic by eye
D8DiodeDIODEno part number given; read from the schematic by eye
D9DiodeDIODEno part number given; oscillator clipping pair; read from the schematic by eye
D10DiodeDIODEno part number given; read from the schematic by eye
D11DiodeDIODEno part number given; read from the schematic by eye
D12DiodeDIODEno part number given; read from the schematic by eye
ICs 1
×1LM324LM324one quad op amp; sections at pins 1-3 and 5-7 used as the two oscillators; read from the schematic by eye
Potentiometers 2
Tune 110k10kPotentiometerread from the schematic by eye
Tune 210k10kPotentiometerread from the schematic by eye
Trimmers 2
R11K1kvariable resistor across ring 1 input, carrier fed to wiper; balance adjust; read from the schematic by eye
R21K1kvariable resistor across ring 2 input, carrier fed to wiper; balance adjust; read from the schematic by eye