OC 71 ge transistor replacement

[ivanvaldes]

Hi all.
I just bought a RIFT pedal from Aion. I have some tested Mullard OC71 ge transistors. Is it possible to change the one that comes in the kit for the OC71?? any experiences???

[FSFX]

Hi all.
I just bought a RIFT pedal from Aion. I have some tested Mullard OC71 ge transistors. Is it possible to change the one that comes in the kit for the OC71?? any experiences???

Forgive my ignorance. I thought the Aion RIFT is an octave fuzz pedal with NPN silicon transistors?
"A classic untamed fuzz from the 1970s that adds an octave-up overtone, famous for its use by Pete Townshend of The Who".

An OC71 is a PNP germanium transistor so where in the circuit did you think this would be useable?

[antonis]

OC71s, wired as current mirror, could replace 10k (R18) in 2N3903s long-tail pair but PCB should need some mods..

Seriously now: Without any PCB mod, the only place where they could go, wired as diodes, is the hard clipping diode pair..

P.S.
Welcome..

[ivanvaldes]

Thank you I'm kinda first timer in pedal making... In fact I finished my RIFT and tone is not working, everything else is ok. Also I get too much noise (some kind of buzz) when I turn down guitar volume halfway. Any clues???

Thank you very much

[antonis]

It's always good to have a schematic to refer on ..



Now, by "tone is not working", what exactly do you mean..??