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SUSTAINTONEVOLUME

Enclosure not stated · 3 knobs

Tagboard Effects

EHX Green Russian Big MuffVerified

Based on the Electro-Harmonix Big Muff Pi· 73 other boards clone it

Category
Fuzz
Controls
Sustain · Tone · Volume
Build
Vero
Layout
Verified · Tagboard Effects marks it as built and working
Tags
Bass, Electro Harmonix, Fuzz
Open the layout at Tagboard Effects Effectsdatabase

From the post

Request. From the effectsdatabase website:

A pinch smoother than its American-made comrade, the Russian Muff exhibits slightly less sustain, yet retains that unmistakable Big Muff sound. Prized by bass players for its edge, and sought after by guitarists seeking its unique flavor.

Here's V7 of the Green Russian from 1994 which a few people wanted in the discussion below.

Schematic

This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Tagboard Effects. No KiCad fragment has been drawn for this circuit yet.

Parts list 27 rows

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Check before you build · 2 values the reader of this layout was not sure of
  • 4n in the centre of the board: printed clearly, unusual value
  • 500p ×3: printed clearly, unusual value
RefValueNormalizedTypeNotes
Resistors 10
×5100K100kread from the layout by eye
×3470K470kread from the layout by eye
×315K15kread from the layout by eye
×3100R100read from the layout by eye
×239K39kread from the layout by eye
×28K28.2kread from the layout by eye
×12K22.2kread from the layout by eye
×11K1kread from the layout by eye
×110K10kread from the layout by eye
×1390K390kread from the layout by eye
Capacitors 7
×3100n100nread from the layout by eye
×210n10none on the board, one on the mids switch; read from the layout by eye
×14n4nread from the layout by eye
×14n74.7non the mids switch; read from the layout by eye
×3500p500pread from the layout by eye
×51u1uelectrolytic; read from the layout by eye
×1100u100uelectrolytic; read from the layout by eye
Diodes 2
×41N9141N914D1 to D4; read from the layout by eye
Dx1N58171N5817read from the layout by eye
Transistors 4
Q12N50892N5089legend: Transistors were low noise Russian Military, try 2N5089, BC550C or similar; read from the layout by eye
Q22N50892N5089legend: Transistors were low noise Russian Military, try 2N5089, BC550C or similar; read from the layout by eye
Q32N50892N5089legend: Transistors were low noise Russian Military, try 2N5089, BC550C or similar; read from the layout by eye
Q42N50892N5089legend: Transistors were low noise Russian Military, try 2N5089, BC550C or similar; read from the layout by eye
Potentiometers 3
SustainB100KB100kPotentiometerread from the layout by eye
ToneB100KB100kPotentiometerread from the layout by eye
VolumeB100KB100kPotentiometerread from the layout by eye
Switches 1
MidsDPDT on/off/onDPDT ON/OFF/ONtoggle, Scooped / Flat / Boosted mids, 3 pos DPDT; read from the layout by eye

Other boards based on the Electro-Harmonix Big Muff Pi