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If you find an answer to #4, I'm interested...otherwise, here's a
couple of answers...<br>
1) No, there were no particular problems to warrant the use of a
breaker...<br>
2) It was a pretty clean unit...and I'm not familiar with "current"
requirements<br>
3) I'll bet there's a mod for this...May 78' and Aug 79' of QST have
some mods that may be related to this...from Penson's book<br>
<br>
Somewhere on the internet is a major mod of the 16', converting it
to a full tranceiver; I seem to remember an agc mod in this...<br>
Guy,<br>
WA6OQQ<br>
<div class="moz-cite-prefix">On 3/7/2014 6:58 PM, John
Klingelhoeffer wrote:<br>
</div>
<blockquote
cite="mid:8D1089170638F37-978-190D7@webmail-vm031.sysops.aol.com"
type="cite"><font color="black" face="Arial, Helvetica,
sans-serif" size="5">A couple of quick questions to the group
regarding the HW-16 CW transceiver I am currently refurbishing.
<div><br>
</div>
<div>1) I notice this has a circuit breaker in the mains primary
instead of fuses. Seems like this is unusual for a Heathkit.
This one is working fine, but I'm wondering if there have
been any electrical safety problems with that approach over
the years the HW-16 has been in the wild? (note: I've already
changed to a 3-wire grounding AC mains cord and plug.) </div>
<div><br>
</div>
<div>2) I'd have to believe that the transmitter met the FCC
requirements for harmonic and spurious emissions at the time
it was designed and manufactured, but has anyone taken
measurements on an HW-16 'lately' to see if it meets current
requirements? </div>
<div><br>
</div>
<div>3) Has anyone come up with an AGC circuit for the HW-16
that works without adversely affecting the very good
full-break-in QSK keying functionality? Running with no AGC
is a real pain both operationally and on the ears. </div>
<div><br>
</div>
<div>4) Has anyone come up with a more pleasing sidetone
oscillator that is simple to integrate into the current
circuity (phase-shift oscillator or something) rather than the
somewhat raucous and raspy neon bulb relaxation oscillator?
I'd sure like an internal sidetone option with a more
pleasing tone. I can adjust the amplitude of the current
oscillator, but the waveform is just downright lousy. </div>
<div><br>
</div>
<div>Thanks and 73 WB4LNM</div>
<div><br>
</div>
<div><br>
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