Phil wrote:
>
>Gentlemen,
>
>Does anyone know if DOD006 Tubes can be made to 'go' on 23cms at all,
>please? I believe that the DOD006 is much the same as an RCA-7213 tube which
>can operate up to 1200MHz or so, but is 1296MHz pushing things too far? What
>level of RF might be produced?
>
>I suspect that it may be the case that I'll have to use the tube at a lower
>frequency - I have a design where they operate at 1500w output at 70cms for
>instance. Using it on HF might be interesting....!
>
A real 7213 works fine at 432, but a DOD006 isn't quite the same.
As far as I know, only G3LTF has made a DOD006 work well at 432, though
they work fine at 144 and, yes, even on HF.
I haven't heard of anyone making even a real 7213 work at 1296MHz with
useful gain, efficiency or power output.
73 from Ian G3SEK Editor, 'The VHF/UHF DX Book'
'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.com/g3sek
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