Re: Possible VTTC?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Mddeming-at-aol-dot-com>

In a message dated 10/22/02 8:48:17 PM Eastern Daylight Time, tesla-at-pupman-dot-com
writes:



>
> Original poster: "Ben McMillen by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <spoonman534-at-yahoo-dot-com>
>
> Hi all,
>    I found (2) Raytheon 829B's in some RF power equipment
> today (along with a really nice magnetron)! Does anyone
> know if these would be useable for a small VTTC? 
>
> Coiling in Pittsburgh
> Ben McMillen
>
>



Hi Ben,
The 829B is a twin beam power tube (two tubes in the same envelope). They are
rated for 150W max input ICAS even with forced air cooling, and a max plate
voltage of 750V, which may be a little low for TC work. Plate dissipation is
only 45 Watts with a bulb temp of 235C. (455F.) IIRC, beam power tubes are
finicky oscillators, but folks on this list have done some pretty atypical
things.

Hope this helps somewhat.
Matt D.