on 5/12/01 10:56 AM, measures at 2@vc.net wrote:
> Heath had a better idea. The Heath SB-220 cooled the tubes with a
> slow-speed fan blowing horizontally into a split-chassis. The diameter
> of the fan was slightly taller than the tubes - so moving air reached all
> parts of the tubes - including the pins. . I have seen a number of
> tubes that were removed from air-system sockets in commercial
I doubt you could cool a 4-1000A or 3-1000A by blowing air across the side
of the tube.
73,
Jon
NA9D
-------------------------------------
Jon Ogden
NA9D (ex: KE9NA)
Member: ARRL, AMSAT, DXCC, NRA
http://www.qsl.net/ke9na
"A life lived in fear is a life half lived."
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