Electro harmonix big muff pi transistor schematic
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Page 1
é 15k
500p 31
5
39k 47b}? 7 1w 4%
ma? mg-ca L-\\\
IN
ELECTRO-HARMONIX BIG MUFF PI
.
Hf . I I
: 390k ¢ é 10k
- 9v
_T_ 111*
T 0.01 E-
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The EH Big Muff Pi would prob ably be improved by mo dem input-jack power switching and a DPDT bypass switch.
This is the original SChemaiC- The diode and transistor types are unknown. Prob ably any high gain NPN and1N914s work.
Coupling caps marked by a * have been reported to sound better if changed to 0.1uf as have the ** marked ones if changed
to 1.0uf.