[Heath] HW-16 transceiver questions

[Guy Giacopuzzi]

If you find an answer to #4, I'm interested...otherwise, here's a couple 
of answers...
1) No, there were no particular problems to warrant the use of a breaker...
2) It was a pretty clean unit...and I'm not familiar with "current" 
requirements
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

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...
Guy,
WA6OQQ
On 3/7/2014 6:58 PM, John Klingelhoeffer wrote:
> A couple of quick questions to the group regarding the HW-16 CW 
> transceiver I am currently refurbishing.
>
> 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.)
>
> 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?
>
> 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.
>
> 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.
>
> Thanks and 73                WB4LNM
>
>
>
>
>
>
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