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Re: Possible VTTC?



Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
> 
> 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.

	No matter what you decide to do, DON'T SOLDER TO THE PINS!!

Ed