[Hallicrafters] S-120 Tuning Questions
Al Parker
anchor at ec.rr.com
Sun Jan 2 20:11:07 EST 2005
Hi all,
I agree with Phil's wild guess, and have another. I think Joe said he
had the osc. on the high side of all bands. Seems to me that many manuals
don't mention which side, but also seems that the higher bands usually
have the osc. on the low side. But Joe said all bands are a problem, not
just the higher ones, so Phil's idea makes more sense.
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.thecompendium.net/radio/
http://www.hammarlund.info
----- Original Message -----
From: "Philip Atchley" <beaconeer at mercednet.com>
To: <Wj5mh at aol.com>; <hallicrafters at mailman.qth.net>
Sent: Sunday, January 02, 2005 7:49 PM
Subject: Re: [Hallicrafters] S-120 Tuning Questions
> Joe,
>
> A wild guess on my part, but are you aligning it with the bandspread set
> to 100 (plates open)? If not, that could be the root of your problem.
>
> 73 de Phil, KO6BB
> >
> > Ed. Actually running out of both. Trimmer screw is backed all the
> > way out,
> > and the coil reaches a point where it starts to stick, and I don't
> > want to
> > force it. When I worked for a Motorola 2-way shop MANY years ago, I
> > used a
> > white powder that had a silicon feel to it. This stuff freed up the
> > stubborn
> > ones.
> >
> > What has me concerned is that ALL of the bands are off, which would
> > point to
> > a common frequency determining component or voltage. That limits it
> > to the
> > main tuning cap, the band-spread cap or possibly the 82 pf N 750 cap
> > running
> > up to the mixer. Haven't looked real close at the voltage, yet.
> > Heck, maybe
> > the tube is a little flaky?
> >
> > I'll get it back on the bench this week...
> >
> > Joe
> > ______________________________________________________________
>
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