[AMRadio] HQ-170 - distortion on AM


Peter Markavage manualman at juno.com
Mon Nov 13 15:02:09 EST 2006


Check the AVC and detector stages. Also, I recall that Hammarlund also
issued one or two service bulletins on the 170 AVC section.

Pete, wa2cwa

On Mon, 13 Nov 2006 12:35:01 -0600 "A.R.S. -  W5AMI"
<ars.w5ami at gmail.com> writes:
> I've got a HQ-170 in mothballs that I want to get in line for a good
> old rx.  Last time I used it something happened where in AM mode, 
> the
> audio was badly distorted.  I suspect something in the AGC/AVC
> circuit, however if I remember right, it was not easy to isolate, so 
> I
> boxed it up for later.  In SSB, it sounds fine, just AM has the
> problem.  Any suggestions on where to look first from some of you
> HQ-170 owners out there?
> 
> 73 Brian
> w5ami



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