[Heath] HX-20 alignment problem

[Alexander N. Gerli]

Hi, everyone!  This is going to be a needle-in-a-haystack question, but
here goes:

I have a nice HX-20/HR-20 pair. So far, the receiver is great, and I'm
trying to align the TX by the Manual. So far, I have the 9MHz IF
transformers peaked and the 80m Mixer and Driver coils peaked. Now, I'm
trying to get to the carrier null part. I've hit a wall, as when I use the
mic PTT and listen for the signal in a monitor RX, the signal sounds AWFUL.
It's not a carrier, but a garbled-sounding rough buzz, and this is with no
TX audio per the Manual. It should be a decent CW note, but surely not
THIS! Makes me think it's self-oscillating, but that's not happening
because when I let off the PTT, no signal and the T/R Relay is working as
it should, So far, the alignment procedure has gone without a hitch.

Anybody have a guess what might be amiss? I was getting about 40W into my
metered dummy load and that's about correct for a single 6146.

​73,​


​Sandy AC1Y​


Alexander N. Gerli, Sr.
548 Allred Mill Road
Mount Airy, NC 27030-2202

Scotsmen walk about 900 miles each year.
A Scotsman drinks around 45 gallons of Whisky a year.
Scotsmen get about 20 Miles Per Gallon.
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