TM500 and TM5000 mainframes/Repairs

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Revision as of 21:59, 21 February 2024 by Mark999 (talk | contribs) (check your pass transistors)
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A bad PNP pass transistor damaged a DC503 for me. Check that your pass transistors are functional before they zap something! After I pulled out the original, a cheap component tester identified it as a JFET. I have yet to put it on a curve tracer but am curious what it shows...

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