Various Heath Mods

[Keith Rowland]

Gerry VanLoh wrote:
>
> The mods are interesting and I'd like to see more of them... know of
> any easy way of finding these articles since I don't have all the older
> QST's anymore?
>
> Gerry WA0JCV
>
> Keith Rowland wrote:
> >
> > More Heath Mods that have appeared in older issues of QST:
> >
> > 1.  Read either peak or average peak amplitude (PEP) with your Heath
> > HM-102 or 102A wattmeter(the units are identical except for the color
> > and the price, the 102A originally cost about $30 more than the 102).
> > See "PEP Wattmeter-a la Heath," Dec 76, pp. 30-31.
> >
> > 2.  RIT for the HW-8:  Hints & Kinks, Dec 78, p. 38; Feedback, Nov 77,
> > and the main article, "Full Break-in and RIT for the HW-8," by Ben
> > Saylor, Jul 77.  Also see Hints & Kinks, Jan 78.
> >
> > 3.  "Improving the SB-104A/SB-644A," Aug 79, pp. 28-31.  Four mods that
> > add RIT, getrid of unwanted signals in the transmitter and receiver, and
> > cure talkback in the speaker or fones during SSB transmit.  Be sure also
> > to read the mods to the mods:  Feedback, Sep 79, p. 23, and Hints &
> > Kinks, May 80, pp. 41-42, before performing surgery!
> >
> > 4.  "Adding RIT to the HW-104 or SB-104 Transceivers," Jan 80. p. 16.
> >
> > 5.  "All Solid State QSK for the Heath SB-220," Jan 80, p. 25.
> >
> > 6.  Tuning Aid and ProtectiveCircuit for the Heath SB-220, Hints &
> > Kinks, Jan 80, p. 51, and H&K, Feb 80, p.44.
> >
> > 7.  SB-303 Receiver Mods:  H&K, May 79, and H&K, Sep 79 (adding Noise
> > Blanker and other mods).
> >
> > If these postings are useful, please let me know, and I'll continue the
> > research. If not, I don't want to waste bandwidth on them.  How about
> > it?
> >
> > 73, Keith
> >
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Hi and thanks for the nice comments. I'll post more as I go thru my
QSTs.  I don't have any prior to 1960, but I do have all the indices in
the December issues since then.

I believe the ARRL will supply Zeroxes for any QST article at a very
modest per-page charge.  Send an e-mail to them about it.  I forget
which department handles it, but their e-mail address should be listed
in each copy of the magazine.  I have had excellent service from all the
departments I've had occasion to contact from time to time.  Answers are
prompt and informative, and the personnel I've dealt with have been
friendly and helpful.  Well worth the modest dues!

Again, thanks.                 73, Keith

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