Re: 811A any good?

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

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

In a message dated 1/22/01 7:14:09 PM Eastern Standard Time, tesla-at-pupman-dot-com 
writes: 



>
> Original poster: "Jan Wagner by way of Terry Fritz <twftesla-at-uswest-dot-net>" < 
> jwagner-at-cc.hut.fi> 
>
> Hi, 
>
> there was a schematic using a 811A tube to drive a VTTC, on some 
> website which I can't remember or find. 
>
> Anyway, is a single 811A tube any good for a table top VTTC? 
>
> Just asking because it is so cheap, about $25 per piece from 
> www.elfa.se ... 
> But those ~250W seem very little? 
>
> - Jan  



Hi Jan! 
      The 250 W is about the point where the plate starts to show a dull red 
glow. If you can get a copy of the RCA technical manual TT-5 "Transmitting 
Tubes - to 4KW Plate Input" it has all the specs. Reprints are available from 
Antique Electronic Supply of Tempe Ariz. 

Matt D.