Re: Testing an AF117 transistor
The tested AF117 worked fine as a replacement in a Stella radio I bought from the NVCF last year. It was silent before replacing the suspect AF117, which was producing a brief crackle in the speaker while tapping the transistor with a screwdriver.
The desoldered AF117 has a resistance of 640 ohm between collector and case. I might zap it at some stage or even de-case in an attempt to clean away its hairs.
Knowing that AF117s have a mind of their own, I installed sockets in case I need to replace the AF117 again.
Thanks everyone for the comments and helping out.
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