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S1 1/2 + - + 10k 1uf 9v + + S1 1/2 1uf Q2 820k 8.2k .047uf 120 500mh 47k Q1 In -Transistors Q1 and Q2 were 48k designated 991-002873 inventory number, a replacement transistor will probably have to be used. -S2 is used to switch the pedal between its modes of wah-wah (off as shown) and volume (on). 1.5M 6uf 25k 56k .1uf 10k S2 .01uf This was undoubtably an Out Model EG-2 Maestro Boomer 2 (Wah-Wah / Volume) 1k RadioFans.CN 收音机爱 好者资料库