[Hallicrafters] HT-37, no power out.

[Al Parker]

Hi Mark,
    Wiggle the bandswitch.  They're noted for getting dirty contacts, that
may be the only problem, particularly since it comes & goes.  It sounds
like everything else is about normal.
    The power xfmrs are notorious for shorting, and the Peter Dahl
replacement is a super one, I have one in my HT-32.  It'll last forever.
You got a good deal with that in there, almost no matter what you paid.
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.thecompendium.net/radio/
http://www.hammarlund.info

----- Original Message ----- 
From: "mark swartzell" <mswartzell at hotmail.com>
To: <hallicrafters at mailman.qth.net>
Sent: Saturday, September 17, 2005 10:40 AM
Subject: [Hallicrafters] HT-37, no power out.


>
>    Here's the scoop!
>
>    Last  Saturday, I picked up a HT-37.  The previous owner is now an
SK.
>    Got  it  at the hamfest here, we fired it up at the hamfest, it
loaded
>    up nicely on 40 CW.  In fairly good shape, some dust inside...
>
>    Got the beast home, and had a couple of nice QSO's with it.  On
Monday
>    afternoon, I turned the rig onto standby.  Then to MOX, where I
tapped
>    the  key and got about 70 watts out. Setting on the meter was
slightly
>    below the "saturation level," as per the manual.
>
>    About  20 minutes later, I went back to the rig, tapped the key
again,
>    and  noticed  an increase in power to about 90 or so watts out
without
>    having adjusted the RF LEVEL knob after it sat on standby.  I
adjusted
>    the RF LEVEL back down to about 70 watts out.  The next time the
power
>    out was about 55 watts.  Adjusted back up to 70 watts, put rig back
on
>    Standby...came  back  to the rig about 30 minutes later and NO
output.
>    Nada.
>
>    There was no smoke, no other symptoms.
>
>    When I turn to MOX (and back to standby) I hear a relay click.  I
also
>    hear the CAL tone in my RCVR when I switch there, and also a tone
when
>    I tap the key in the CW mode.
>
>    I  do  know this HT-37 is running a Peter W. Dahl power supply, so
the
>    previous supply must have crisped out at one point.
>
>    Any ideas?
>    Go easy on me, guys, I'm very new at this boatanchor stuff.
>
>    tnx & 73
>
>    Mark/AA0CX
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