PedalPCB source germanium transistors?

eroots

New member
I'm thinking about building the Hudson Duocast (among others) which use germanium PNP transistors (specifically the OC71 for the Duocast). I've read elsewhere on this forum that the specific model of the transistor is less important than the specs, and that anything with an Hfe of 70-120 should be fine in this case.

I see that PedalPCB itself sells a few different PNP germanium transistors (1T313A, 1T313V, MP38-40A), but no specs are published on the pages.
Has anyone built using any of these transistors off of PedalPCB? Are the values just within whatever range that specific part usually has, and you have to buy a bunch and test to find the ones that are in range?
 
I haven't built this pedal in particular but from my understanding it's mostly about hfe so generally you can kinda just try whatever pnp germaniums in that hfe you can get your hands on/have lying around. I will say my last batch of about 20 mp38a's from sovcom on ebay all tested between 40-85 so sadly I had no higher ones. Luckily there was a mp20a mixed in that was ~100 so i used it with a mp38a of ~80hfe in my fuzz foundry deluxe last night for example though.
 
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