Re: red 304TL

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

Original poster: "claude masetto by way of Terry Fritz <twftesla-at-qwest-dot-net>" <claudmas-at-optusnet-dot-com.au>

Hello Steve,
I've built a dual 304tl VTTC and run the tubes in short bursts for a few
seconds when the plates glow a real bright orange as I was lucky to get
these tubes real cheap and I don't want to melt a hole in the plate. The
insides of the four plates are a lot brighter because of the concentrated
heat.
I can get 28" out of this system and when I was running with one tube I also
obtained 18" with a bright glowing plate.What size transformer and what size
doubler cap are you using?
I would'nt push these tubes any more when they glow like this. What is your
plate current and grid current.
Regards
Claude.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, November 14, 2002 10:56 AM
Subject: red 304TL


 > Original poster: "Steven Ward by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<srward16-at-hotmail-dot-com>
 >
 >
 > Hello,
 >
 > Im working on my 304TL VTTC, and with a doubler im up to about 18" with
 > only one tube.  Problem is, the tubes getting red to say the least!  I
 > would actually have to say almost an orange!  I know this is probably
 > bad.  But, does anyone know how red these tubes are spec'd to run?  I
think
 > im up to 90v on the variac, so thats about 3000v or so on the plate.  Im
 > going to look into staccato circuits, but for now i would like to know how
 > red/orange can this tube run.  If anyone has this type of experience or
 > info on this tube, let me know.  Thanks,
 >
 > Steve Ward.
 >
 >
 >