On 27 May 2006 at 18:46, Steve Thompson wrote:
> carl s. wrote:
> > Can anyone tell me if the 813 tube can be used safely in the horizontal
> > position ???
> RCA data says not. Vertical only, either way up.
I used (as did many others) the ART-13 military transmitter which
used an 813 in the horizontal position. It was a Collins rig, if I
recall correctly (it was in 1957-1964 for gosh sake! That's a while
ago!) and I doubt that they would use the tube in a "forbidden"
manner. Maybe their manual said "don't use RCA tubes" 8-)
73,
George T. Daughters, K6GT
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