[Amps] Advice needed for SS amp

[Radio WC6W]

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 at 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


>