[ARC5] Cap Test

[Ken]

Robert;
    The best thing I have used to test Electrolytic Caps is a 
oscilloscope with a component tester, or add an "Octopus" to a regular 
oscilloscope.   Once you understand what you are looking for, its easy 
to see a leaky cap with one.  Even better you can use it for semiconductors.

Ken  WA0SBU


On 02/08/2011 10:55 AM, Robert Eleazer wrote:
> 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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