[vcf-midatlantic] A little electronics hack

Mike Loewen mloewen at cpumagic.scol.pa.us
Sun Sep 29 13:55:59 EDT 2019


On Sun, 29 Sep 2019, Evan Koblentz via vcf-midatlantic wrote:

> Neville noticed something that I wouldn't have. The circuitry contains a
> safety mechanism to shut off all power if the current jumps too high, such
> as a kid inserting a paper clip. There's probably a technical name for that
> but I do not know it. Anyway, for unknown reasons this circuit was kicking
> in! He jumped it with an equal-length wire. :)

    It's called a 'crowbar' circuit.  Prevents things from burning up.


Mike Loewen				mloewen at cpumagic.scol.pa.us
Old Technology				http://q7.neurotica.com/Oldtech/


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