Enclosure not stated · 3 knobs

EHX Black Russian Big Muff V8Verified

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: Electro Harmonix, Fuzz

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 25 rows

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Ref	Value	Normalized	Type	Notes
Resistors 8
×4	100K	100k		read from the layout by eye
×4	470K	470k		read from the layout by eye
×4	10K	10k		read from the layout by eye
×3	12K	12k		read from the layout by eye
×3	390R	390		read from the layout by eye
×2	22K	22k		read from the layout by eye
×1	39K	39k		read from the layout by eye
×1	2K7	2.7k		read from the layout by eye
Capacitors 7
×6	100n	100n		read from the layout by eye
×2	47n	47n		read from the layout by eye
×2	10n	10n		one on the board, one on the mids switch; read from the layout by eye
×1	3n9	3.9n		read from the layout by eye
×1	4n7	4.7n		on the mids switch; read from the layout by eye
×3	470p	470p		read from the layout by eye
×1	100u	100u		electrolytic; read from the layout by eye
Diodes 2
×4	1N914	1N914		D1 to D4; read from the layout by eye
Dx	1N5817	1N5817		read from the layout by eye
Transistors 4
Q1	BC547C	BC547C		legend: Transistors were BC547C or BC549C; read from the layout by eye
Q2	BC547C	BC547C		legend: Transistors were BC547C or BC549C; read from the layout by eye
Q3	BC547C	BC547C		legend: Transistors were BC547C or BC549C; read from the layout by eye
Q4	BC547C	BC547C		legend: Transistors were BC547C or BC549C; read from the layout by eye
Potentiometers 3
Sustain	B100K	B100k	Potentiometer	read from the layout by eye
Tone	B100K	B100k	Potentiometer	read from the layout by eye
Volume	B100K	B100k	Potentiometer	read from the layout by eye
Switches 1
Mids	DPDT on/off/on	DPDT ON/OFF/ON		toggle, Scooped / Flat / Boosted mids, 3 pos DPDT; read from the layout by eye

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