Re: red 304TL

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

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

Tesla list wrote:
 >
 > 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.

	Can't say for sure about the 304TL, but similar tubes are RADIATION
COOLED and can run forever at a bright orange.  They are very thoroughly
degassed and have high-temperature glass envelopes.  I'd say you are
very safe.

Ed