It's briefly described in Marv Gonsior's article,
"Power On A Budget", in Communications Quarterly,
The 4cx1600a with the small cooler diameter and
the 4cx1600b with the "recently enlarged cooler".
QRO HOMEBREW COMPONENTS
> Paul, et.al.:
> I'll be darned! I wonder what the
> airflow requirements for the small
> radiator version might be! Was it
> intended for pulse use?
> Whatever, the fact remains that the
> GS-23 is no way to be mistaken for
> the "small radiator" version of the
> 4CX1600 ("for what it's worth").
> Heck, I'm not sure it should be
> "mistaken" for a 4CX1600 of ANY kind! I
> DO know that more than a few folks use
> the GS-23 for "full legal limit"
> PA's through 70cm but, personally, I
> don't know that I would want to
> build many of the coaxial "sockets" it
> requires - HI!
> Thanks for the info!
> 73, Paul ND2X/5
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