What to build with some Mullard OC42s and some BC549s?

Started by mordechai, January 06, 2015, 10:20:20 AM

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mordechai

I've inherited a bunch of OC42s (very low leakage, various Hfe's, but averaging about 110) and several BC549s.  Not sure what to do with them.  What circuits would react well with these trannies?