[NJARC] Bad Mica Cap

John Ruccolo jr6v6gt at yahoo.com
Mon Oct 5 10:16:02 EDT 2009


Hi Bob,

I thought you did a really nice job on the article, and it should encourage the rest if us (like me) to contribute an article or two.

It was a good story with a happy ending.

Regards,

John

--- On Sun, 10/4/09, Robert Bennett <dino66 at optonline.net> wrote:

> From: Robert Bennett <dino66 at optonline.net>
> Subject: Re: [NJARC] Bad Mica Cap
> To: "'NICHOLAS SENKER'" <ns539 at embarqmail.com>
> Cc: njarc at mailman.qth.net
> Date: Sunday, October 4, 2009, 10:47 PM
> Just remember 
> Reply = Poster
> Reply All = Everyone
> 
> _________________________________________________________
> Nick -
>           This cap was not bad if
> my memory serves me, and I cannot remember
> the value. The reason I replaced it was because during the
> final
> calibrations and tuning, I could not get the dial scale
> pointer accurate for
> the appropriate frequency. The shortwave scale was off
> enough that
> adjustment of the oscillator coil and trimmer was not to my
> liking. The
> value of the cap was out of tolerance. After replacement, I
> was able to get
> it right where it should be. I have a bin with many NOS
> mica caps. I
> received from a closed up electronics shop a few years ago.
> It does come in
> handy once in awhile. I will share with you that I have had
> more trouble
> with the silver micas, especially those found in IF cans.
> The standard mica
> caps are usually bulletproof.
>  
> Bob Bennett
> P.S. I hope you enjoyed the story since I'm not a writer
> and I'm sure some
> folks were wondering what became of the "Radio no one
> wanted" Hi;)
> 
> -----Original Message-----
> From: njarc-bounces at mailman.qth.net
> [mailto:njarc-bounces at mailman.qth.net]
> On Behalf Of NICHOLAS SENKER
> Sent: Sunday, October 04, 2009 8:04 PM
> To: njarc at mailman.qth.net
> NJARC
> Subject: [NJARC] Bad Mica Cap
> 
> Just remember 
> Reply = Poster
> Reply All = Everyone
> 
> _________________________________________________________
> For Bob Bennett and Mike Christensen:  I enjoyed your
> article in this
> month's Broadcaster' about your restoration of the Airline
> console.  I would
> be interested in how you determined a bad mica cap in the
> SW section?  Mica
> caps rarely give problems and are not easily spoted when
> bad.
> Nick Senker
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