Print Page - Patsyface - Cheap PNPs to test with?

Title: Patsyface - Cheap PNPs to test with?
Post by: camsna on January 03, 2011, 05:02:49 PM

What do I need? I fear I burned up a set of $$ germanium ones and would like to install sockets and use cheapies to test the circuit. Then, I can replace them with Mullards once I'm sure the rest of the circuit is up to snuff.

What'll work?

Thanks!!!

Title: Re: Patsyface - Cheap PNPs to test with?
Post by: stecykmi on January 03, 2011, 05:56:09 PM

any PNP BJT will work, silicon or otherwise. The 2N3906 is the PNP counterpart to the 2N3904, that'll do for testing purposes.

Title: Re: Patsyface - Cheap PNPs to test with?
Post by: Meowy on January 03, 2011, 06:18:53 PM

I don't know what gain or semiconductor you need , but Smallbear has 60-69 hfe low leakage germanium PNPs @ 5 for $9. They are pot luck, but I've got some OC75 and some Japanese cans as well. Some are as good as anything, others a bit hissy, but for testing you can't go wrong

Title: Re: Patsyface - Cheap PNPs to test with?
Post by: camsna on January 04, 2011, 03:23:18 PM

Thanks, fellas! :)

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Projects => Tech Help - Projects Page => Topic started by: camsna on January 03, 2011, 05:02:49 PM