Various Heath Mods

[Gerry VanLoh]

Another method of getting back to at least 1970 is the CD set of
old QST issues from the ARRL.  In 5 year sets up to present.  I
don't have one yet but a friend does so will be checking that out.

Gerry WAØJCV

Keith Rowland wrote:
>
> 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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