Akashic Guitar effects circuit lookup
DRIVETONETREBLE BOOST TRIMVOLUME

Enclosure not stated · 4 knobs

Revolution Deux

Analogman King of Tone (one channel)

Based on the Analogman King of Tone· 17 other boards clone it

Category
Overdrive
Controls
Drive · Tone · Treble boost trim · Volume
Price
see vendor
Read the post at Revolution Deux Schematic image

From the vendor

One half of the Analogman King of Tone, which the author calls a modified Marshall Bluesbreaker: a JRC4580 input buffer, a non-inverting gain stage with MA856 diode pairs in its feedback loop (switched by DIP1), 1S1588 diodes to ground (DIP2), and a Bluesbreaker-style tone with a treble-boost trimmer. The KOT puts two of these in series; Torchy's General Guitar Gadgets project builds one half, so build two for the full pedal.

The drawing lists changed values for the General Guitar Gadgets project boards only: R2 27K, R3 33K, R7 a jumper, C5 100u electrolytic, C6 a jumper, C7 100n, plus an added 10K gain stopper resistor, a 50K treble-boost trimmer and a 1u output cap.

Schematic

The schematic is in the post. Open it at Revolution Deux. No KiCad fragment has been drawn for this circuit yet.

Parts list 40 rows

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RefValueNormalizedTypeNotes
Resistors 14
R133.3K3.3kLED; read from the schematic by eye
R1147K47kread from the schematic by eye
R1247K47kread from the schematic by eye
R11M1Mread from the schematic by eye
R21M1Mread from the schematic by eye
R1610K10kread from the schematic by eye
R433K33kread from the schematic by eye
R327K27kread from the schematic by eye
R510K10kcarbon comp; read from the schematic by eye
R6220K220kread from the schematic by eye
R76.8K6.8kread from the schematic by eye
R81K1kcarbon comp; read from the schematic by eye
R96.8K6.8kcarbon comp; read from the schematic by eye
R101M1Mread from the schematic by eye
Capacitors 11
C11100u100uelectrolytic; read from the schematic by eye
C10100u100uelectrolytic; read from the schematic by eye
C110n10nread from the schematic by eye
C4100p100pread from the schematic by eye
C310n10nread from the schematic by eye
C210n10nread from the schematic by eye
C5100n100nread from the schematic by eye
C610n10nread from the schematic by eye
C710n10nread from the schematic by eye
C81u1uread from the schematic by eye
C91u1uelectrolytic; read from the schematic by eye
Diodes 7
D51N58171N5817read from the schematic by eye
D1MA856MA856read from the schematic by eye
D2MA856MA856read from the schematic by eye
D3MA856MA856read from the schematic by eye
D4MA856MA856read from the schematic by eye
D71S15881S1588read from the schematic by eye
D81S15881S1588read from the schematic by eye
ICs 1
IC1JRC4580DJRC4580Dread from the schematic by eye
Potentiometers 4
DriveB100KB100kPotentiometerVR1; read from the schematic by eye
ToneB25KB25kPotentiometerVR2; read from the schematic by eye
Treble boost trimB50KB50kPotentiometerVR3, trimmer; read from the schematic by eye
VolumeA100KA100kPotentiometerVR4; read from the schematic by eye
Switches 2
DIP1SPSTSPSTswitches the feedback diodes; read from the schematic by eye
DIP2SPSTSPSTswitches the diodes to ground; read from the schematic by eye
LEDs 1
D6LEDLEDwith an LED on/off switch; read from the schematic by eye

Other boards based on the Analogman King of Tone