K6GT wrote:
>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-)
WARNING: Do not operate 6ft rack on its side.
--
73 from Ian GM3SEK
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