Electro Harmonix Gig Muff Pi 电路图.pdf
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Electro Harmonix Gig Muff Pi 电路图.pdf
+ + + + + + ELECTRO-HARMONIX BIG MUFF PI IN OUT VolumeTone 39k 1u 100k 100 1k 470k 500p 15k 100k 8.2k 100k 100 470k 500p 15k 8.2k 100 15k 500p 9V 39k 0.004 100k 0.01 0.1 100k 10k 2.2k 100k 390k The EH Big Muff Pi would probably be improved by modern input-jack power switching and a DPDT bypass switch. This is the original schematic. 470k Sustain The diode and transistor types are unknown. Probably any high gain NPN and 1N914s work. 1u* 1uf* 0.1*0.1* 1u* 1u* 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. The original transistors were marked SPT 87-103, and the original diodes were marked 525GY or 523GY (hard to read). RadioFans.CN 收音机爱 好者资料库
