Typical trannies for pedals?

Frequently asked question on transistors: types, substitutions, how to test, use and misuse them.
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timefortea
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Post by timefortea »

I'm looking to eBay some transistor bundles where I can select from 20 different varieties to make the 100. What are done of the more commonly used trannies to know what I should grab in bulk?

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scream314
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Post by scream314 »

Maybe a bit too late, but thetre are a few common (NPN; Si) transistors (btw you can use _any_ transistor in the right place):

LOW GAIN (<100):
2n2221,BC301 – 4, BC301 – 5

MEDIUM GAIN (100-300):
2n2219, 2n2219a, 2n2222a, 2n3904, BC107A, BC107B, BC108A, BC108B, BC182A, BC183, BC237A, BC237B, BC301 – 6, BC549A, BC549B, PN2222

HIGH GAIN (300-1000):
2n5088, 2n5089, BC108C, BC182B, BC184, BC549C

DARLINGTON:
MPSA13, MPSA14

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