Part number isn't that important, more so leakage and gain...and you'll want leaky transistors in this one, the ones that is in your dud bin. Socketing and some experimenting will be required but leakake at around 500uA and hfe around 100 is a good starting point IMHO.
Built it as an NPN version, with leaky Russian GT404s - and it sounds great, except for the hiss - I used a lower-gain 2N5172 only because the pinout matched, but they've created hiss in every circuit I've tried them in. Any suggestions on what to try for Q2 to tame the angry snakes?
Thanks for another great layout, Anders. And huge thanks to AcidFuzz for sharing his work. https://www.youtube.com/watch?v=q9I5HRkP13Q
ReplyDeleteWhat would be a good (available) sub for the TIA02618?
ReplyDeletePart number isn't that important, more so leakage and gain...and you'll want leaky transistors in this one, the ones that is in your dud bin.
DeleteSocketing and some experimenting will be required but leakake at around 500uA and hfe around 100 is a good starting point IMHO.
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ReplyDeleteBuilt it as an NPN version, with leaky Russian GT404s - and it sounds great, except for the hiss - I used a lower-gain 2N5172 only because the pinout matched, but they've created hiss in every circuit I've tried them in. Any suggestions on what to try for Q2 to tame the angry snakes?
ReplyDeleteIs the first transistor (TIA02618) germanium or silicon? I'm assuming ge?
ReplyDeleteYes, it is ge.
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