[Hallicrafters] HT-32 alignment

[Al Parker]

Hi agn Bob,
    I guess one question would be, "did this just happen suddenly, or has
it been this way?"   If it's been this way, or happened gradually, then:
    I'd do an alignment on it, or at least touch up the interstage ckts
that are in the cans between the final cage & the xtals.  I think the
trimmers are what you see from above, the coils slugs are adj from
underneath.  So you can do a quicky from the top.  Abt 3 yrs ago when I had
been into mine, I got 80-100w out across all bands, incl 10m.  But recently
it  dropped to 75-80 on many.  Don't really know why, I did touch up those
with some help, didn't do a  whole job.  I swapped 12BY7's, with no lasting
difference, maybe the finals are getting old, I think they're Chinese, but
were very good & strong when I put them in.  I had compared several pairs.
    Thinking back, I believe the injection level at the various mixers
makes a big difference in signal gain.  I think I had the bottom off of the
SB gen., worrying abt stuff in there, but don't remember if I found a
problem.
    I had an HT-32A that came to me somewhat disassembled, and a previous
hand had tweaked ALL the adjustments in the thing.  Talk about a bear.  I
had to use the Autek RF analyzer on tuned ckts to get them in the proper
range b4 I could get any signal thru to follow the normal procedure.  The
mixers had to be very close in order to get the proper freq. out.
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
anchor at ec.rr.com
http://www.thecompendium.net/radio/

And remember; "-They don´t make tubes nowadays like they used to..."

----- Original Message -----
From: "Bob Nickels" <ranickel at mwci.net>
Sent: Tuesday, January 15, 2002 11:04 PM
Subject: Re: [Hallicrafters] HT-3x transformers
> Another question on these fine old transmitters...
>
> My HT-32B has low output, and the tubes check good.   My next step was
going to be
> a complete alignment, which is fairly complicated and time consuming, but
the
> manual warns against doing so unless there is a known problem in these
stages.
> So my question is, would it be reasonable to expect "low output" to be
caused by
> misalignment?  Or would I be better off looking for a problem in one or
more
> stages?
>
> Thanks and 73,
> Bob W9RAN
>