And no need for the reverse polarity chip either. I still need to modify the circuit a bit to roll-off some of the treble but by using a 2N2222A with an hfe under 160 I have made some great sounding Red Rooster pedals.
My most successful use of Si instead of Ge has been in the Red Rooster (Chickenhead) treble booster. Of course with older transistors noise can become an issue, but if you replacing germanium perhaps not such an issue! I've used some very old 2N3903s and 2N2222As.
I have had good results in some circuits by subbing low-gain Si trannies for Ge. Well Ge transistors leak, and that can be a big part of why some fuzz circuits work with Ge but not so well with Si.
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