[R-390] r390, not the a, audio problem, possibloe agc proble m

Thu, 13 Feb 2003 08:17:55 -0500

Thats how we keep warm

-----Original Message-----
From: Tom M. [mailto:[email protected]]
Sent: Thursday, February 13, 2003 8:09 AM
To: KC8OPP Roger S.; James Bischof
Cc: [email protected]
Subject: Re: [R-390] r390, not the a, audio problem, possibloe agc
problem

I hope it is cool in your location.

Too darn hot down here to leave them on 24/7.

Tom 
La.
--- "KC8OPP Roger S." <[email protected]> wrote:
> James,
> 
> I had the exact same problem here with one of my
> R390's.  But I never determined what the problem was. 
> During trouble shooting and alignment I noticed the
> problem and put it on the list of things to work on, a
> long list for this particular radio.  As time went by,
> the problem diminished and finally disappeared all
> together.  The only thing I did was keep the radio on
> and operating.
> 
> Now after 2 years, there is no evidence of the
> problem, although I know it is lurking in the
> background.  This is a mostly Motorola set and I leave
> it on 24/7 as part of my AM station.
> 
> Sorry I don't have a solution for you, but I would be
> interested in what you find out.  In the mean time,
> plug it in and let it play.  Could work for you too.
> 
> 73's
> Roger
> KC8OPP
> 
> --- James Bischof <[email protected]> wrote:
> > I have two Junker r30, not the a,  and am trying to
> > make one good one. I spent all day Saturday and
> > Sunday  and I finally got one to work!  My problem
> > is this, I have to turn the limiter on to hear the
> > stations. Radio seems to work pretty good. When I
> > turn the limiter off the carrier level is  not 
> > affected. When the limiter is off I can hardly hear
> > any audio, but I do hear some ac hum.   I do not
> > think it is in the if chassis or power supply
> > module. I did sub the audio chassis with out any
> > luck. I think it might be in the rf deck, but I
> > don't exactly know why I think this. I was also
> > thinking I might have a agc problem. Any help
> > please. 
> > James Bischof
> > Schenectady, New York
> > Wa2qin
> > 
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> 
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