29 Sep
2019
29 Sep
'19
1:55 p.m.
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@cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/