[ARC5] Cap Test

Tue Feb 8 21:55:55 EST 2011

Even better, try to find a good Huntron Tracker!

* * * * * * * * * * *
* 73 - Mac, K2GKK/5 *
* (Since 30 Nov 53) *
* Oklahoma City, OK *
* USAF, Ret (61-81) *
* * * * * * * * * * *

> Date: Tue, 8 Feb 2011 18:29:49 -0600
> From: kenslimmer at aircanopy.net
> To: arc5 at mailman.qth.net
> Subject: Re: [ARC5] Cap Test
> 
> 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
> > ______________________________________________________________
> > ARC5 mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/arc5
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:ARC5 at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> >
> >
> 
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html 		 	   		  