Author Topic: Multimeter Input Protection Circuit  (Read 1572 times)

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Offline tomcarlson

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Multimeter Input Protection Circuit
« on: January 23, 2020, 07:20:23 pm »
I remember watching an episode several months ago, where Dave talked about how some multimeters use a BJT or a couple of BJT's as over-voltage protection in a clever, non-standard way.  Can anybody point me to the episode or help me remember the specifics of this circuit?  I seem to remember that you needed a special type of BJT as well.

Offline thm_w

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Re: Multimeter Input Protection Circuit
« Reply #1 on: January 23, 2020, 10:07:47 pm »

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