Richard W. Ehrhorn wrote:
>May also be worth mentioning that (I think) the original Svetlana-built
>Russian
>military tube was the 4CX1600A, which is similar but not identical to the
>newer
>4CX1600B. My impression is that the "B" version may have been derived
>specifically for commercial export sales - has a bigger and more efficient
>air
>cooler, greater power rating, and specific applications data for SSB. How much
>the increased ratings are due to the cooler, possible internal changes (which
>I
>doubt), or a less conservative ratings philosophy for ham/export applications
>is
>unclear.
>
>Can anyone (Ian?) confirm, clarify, correct or add to the above?
>
Sorry, I don't have any further information.
Your posting is the first I ever heard of the 4CX1600*A*. That would be
an "export" designation anyway - would it be better known under the
original Russian "GU" number?
73 from Ian G3SEK Editor, 'The VHF/UHF DX Book'
'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.demon.co.uk/g3sek
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