Akashic Guitar effects circuit lookup

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Experimentalists Anonymous

Proco Rat 3

Based on the ProCo RAT· 41 other boards clone it

Category
Distortion· Distortion Boost and Overdrive
Price
see vendor
Tags
Distortion Boost and Overdrive
Open the schematic at Experimentalists Anonymous

Schematic

The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.

Parts list 23 rows

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RefValueNormalizedTypeNotes
Resistors 8
×14747gain leg to 4.7uF; read from the schematic by eye
×1100100supply; read from the schematic by eye
×1560560gain leg to 4.7uF; read from the schematic by eye
×21k1kone at the input, one at the op amp output; read from the schematic by eye
×11.5k1.5kafter the filter pot; read from the schematic by eye
×110k10kJFET source; read from the schematic by eye
×2100k100k4.5V bias divider; read from the schematic by eye
×21M1Minput bias and JFET gate bias; read from the schematic by eye
Capacitors 8
×130pf30pcompensation, pins 1-8; read from the schematic by eye
×1100pf100pfeedback; read from the schematic by eye
×20.001uf1ninput filter to ground; supply bypass; read from the schematic by eye
×10.0033uf3.3nfilter; read from the schematic by eye
×20.022uf22ninput coupling; output to JFET gate; read from the schematic by eye
×21uf1uelectrolytic, 50v; bias filter and JFET output coupling; read from the schematic by eye
×34.7uf4.7uelectrolytic, 35v; two in the gain legs, one output coupling; read from the schematic by eye
×1100uf100uelectrolytic, 16v; supply filter; read from the schematic by eye
Diodes 2
×11N40011N4001supply protection; read from the schematic by eye
×21N41481N4148clipping diodes to ground ('Diodes = 1N4148'); read from the schematic by eye
Transistors 1
×12N54582N5458JFET output buffer; read from the schematic by eye
ICs 1
×1LM308LM308read from the schematic by eye
Potentiometers 3
×1A100kA100kPotentiometergain/distortion pot in the feedback loop (unnamed), drawn '100k Log'; read from the schematic by eye
×1A100kA100kPotentiometerfilter pot (unnamed), drawn '100k Log'; read from the schematic by eye
×1A100kA100kPotentiometervolume pot (unnamed), drawn '100k Log'; read from the schematic by eye

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