[ARC5] Cap Test

Robert Eleazer releazer at earthlink.net
Tue Feb 8 11:55:08 EST 2011


Y'all please note that in WWII they "hacked" the equipment too. As the esteemed Mr. White described in his legendary articles, USAAF techs produced 9-13, 20-27 MHZ and 30-40 MHZ versions of BC-455's. Would hacking a unmodded set to produce one of these rare versions not be a worthy endeavor? 


And moving on now to less philosophical, and one would hope, less controversial realms, I wonder if anyone can recommend a quick and dirty test for electrolytic caps.

Last night I turned not one, but two, 5Y3GT's into momentary night lights. I am trying to figure out why and I'm trying to decide if the previously satisfactory replacement electrolytic filter cap has turned violent.

Normally I charge up a cap, remove the power and see how long it takes for the charge to dissipate. Instantaneous loss of voltage is bad. If it lingers on a while, slowly decaying at a steady rate, that's good.

Any ideas?

Wayne

WB5WSV


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