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Big Muff Pi (Triangle version)

Categories
AudioDIY:Guitar Effects
Features
Schematics | PCB layout | Instructions | PCB for sale | Kit for sale
PSU
+9v

Great distortion effect from the 70's used by a lot of famous bands like Pink Floyd and Nirvana.
There are a lot of versions of the Big Muff Pi. The Triangle version is the original design and by many considered the best sounding.

PCB and kit available from GGG.
The PCB can be used to build any Big Muff version.

  • C2 is unpopulated in the Triangle version
  • R9 is unpopulated in the Triangle version
  • Substitutes for 2N5088 (original): 2N5089, 2N3904, 2N4401 +++
Images
Big Muff Pi
Big Muff Pi
Third edition
Capacitors
Value Count Type LS Designators Note  
560p
2
Ceramic
 
C5 C8
Ceramic or Polyester
3n9
1
Ceramic
 
C10
Ceramic or Polyester
47n
2
Polyester/Mylar
 
C6 C9
 
100n
4
Polyester/Mylar
 
C1 C3 C4 C7
 
Resistors
Value Count Type Designators Note  
150
1
5%
R12
 
820
2
5%
R4 R16
 
1k
2
5%
R7 R27
 
2k7
1
5%
R23
 
3k3
1
5%
R1
 
8k2
2
5%
R8 R13
 
12k
2
5%
R11 R24
 
22k
2
5%
R5 R17
 
39k
2
5%
R18 R19
 
82k
2
5%
R2 R14
 
100k
1
5%
R21
 
390k
4
5%
R3 R10 R15 R22
 
1m5
1
5%
R26
Sustain
100k
2
Potmeter log
R6 R25
Tone
100k
1
Potmeter lin
R20
Volume
IC sockets
Type Needed
No data
 

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