[ARC5] Reviving squealing "command" receivers (re-capping)

[Bob Macklin]

I use a Hethkit IM-28.

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: "Richard Schumann" <richardschumann at comcast.net>
To: <arc5 at mailman.qth.net>
Sent: Sunday, March 06, 2011 12:46 PM
Subject: Re: [ARC5] Reviving squealing "command" receivers (re-capping)


> Well, all this talk about checking capacitors has motivated me to purchase 
> an inexpensive unit that will do the job.
>
> For those of us on a 'Harbor Freight' budget, do they or another source 
> have a reasonably priced DMM or something accurate enough to get the job 
> done?
>
> I have seen some DMM threads on this or the glowbugs group, but my 
> interest has now been piqued and now I'm paying a little better attention.
>
> Something small not requiring too much real estate on the 'ol bench.
>
> Thanks for any input from the group!
>
> Richard  kn7sfz in Orygun
>
>
>  ----- Original Message ----- 
>  From: Jack Antonio
>  To: arc5 at mailman.qth.net
>  Sent: Sunday, March 06, 2011 10:44 AM
>  Subject: Re: [ARC5] Reviving squealing "command" receivers (re-capping)
>
>
>  When checking the multi-section caps for leakage, also
>  check for leakage between each section, as well as
>  each section to common.
>
>  Have a BC-946 that would increase its gain as it warmed
>  up, along with the sensitivity control having less and less effect.
>
>  Turns out one of the 3 section caps, each section checked OK
>  by itself, but there was considerable leakage between two of
>  the sections, which increased as the set warmed up.
>
>  Jack Antonio WA7DIA/4
>
>
>
>
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