I had to edit this because I hadn't had coffee yet when I wrote it. It made no sense originally. I get to analog Mike's fuzz eventually.
I'm not sure. It's so situational per pedal and my memory us not as good as it wss 10 years ago. I don't know that it's worth addressing right now but if you really want, here goes.
If you've played a bunch of old silicon fuzz faces they all uses bc108s (or 109s, basically the same general purpose bipolar, apart from the max voltage rating anyway... bc549, bc46 etc etc, same with varying noise performance... american versions are 2n508x series). And yet silicon FFs can vary as much as germanium versions. They're all over the place because arbiter didn't sort for hfe or change any bias resistor values to suit the individual transistors they used. You can have ones that sputter out, units that sing with searing sustain, velcro fuzz faces, but they're all same bc108 transistors inside... the huge sonic difference are tolerances within transistor batches. You can't account for that with different items. Same pedal, same year, they look alike, they use the same type transistors, they aren't the same, or don't behave the same way despite looking the same inside and out. I would be open to separating germanium and silicon FFs if we haven't already. Germanium is lower gain but usually doesn't sputter out and its darker in tone due to an inherently limited input impedance (although that can be adjusted with negative feedback and emitter bypass resistors, that would be a different pedal).
This stuff is a rabbit hole and it spreads misinformation about 'mojo' parts. I could put up with separating germanium from silicon uf there's 2 versions of an old fuzz with differentcosmetics where the change in appearancedelineates a change in components, usually there isn't. Correct me if I'm wrong, but doesn't analogman make different sub-models that say what transistors are used right on the pedal though? That's a separate item, no doubt. Is it worth worrying about right now? I doubt it.
On the other side of the argument Ac128s or nkt275s won't vary much from another germanium device in thus primitive circuit apart from the rotten noise performance. Those transistors were chosen because they were cheaper than oc44s, 76s 77s which woulda been in the hurst designed sola tonebender they copied. And there were better germaniums at the time than gary chose.
But if its printed on the pedal it's a separate item to me. If it has an extra control, even a pot to adjust the bias voltage divider because cheap germanium semiconductors have poor temp coefficients it's a different pedal because you can mis-use that knob to make tones a pedal without a bias pot just can't. I could stomach separating fuzz faces but it's no indication of what you're getting aside from germanium is typically darker... if nothing is specified on the pedal then I say no... but whatever; guitarists are gonna do what they gonna do and when you push the pimple down it pops up someplace else! theres a song in that somewhere. I like chatting with you when I'm slacking off work but I think overall the stuff you're worried about isn't really high priority right now. There's a site wide update going on, both cosmetic and back end. Can all these merges wait until the big changes are implemented? Most kids on this site aren't cork sniffing this hard but if someone wants to go there I've been rolling my eyes and leaving it alone. If someone is shopping sunfaces they should buy whatevers available since the waitlist on new ones is years long. You can't even buy a klon branded centaur anymore, nor should you buy a used one, its batsh!t. Your choice of speakers shapes your sound more than anything else anyway... and dudes aren't even playing through speakers these days.