Hi Peter,
Back in the 1950's, Hughes created the kilowatt HACON amplifier, for use on
the B-58 Bomber, which had 4x 4CX250 family finals, with large finned radiators
in lieu of the standard air fins, in an autotuned not quite cubic foot package,
filled with one of the DuPont $600/gallon ... fluids.
http://qsl.net/wc6w/wc6wamps/popp.html?fr62c1.jpg
73 & Good morning,
Marv WC6W
http://qsl.net/wc6w/
--- On Thu, 6/6/13, peter chadwick <g8on@fsmail.net> wrote:
> I believe that at one time, there was
> a US mil airborne HF Tx that used a 4CX350 with the whole PA
> compartment liquid cooled with a relatively inert silicone
> oil fluid. Although not quite as good as water, this is a
> possible approach, although I wouldn't know where to get a
> suitable oil.
>
> 73
>
> Peter G3RZP
>
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