Re: Filament Issue

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

Original poster: "Jim Mitchell" <electrontube-at-sbcglobal-dot-net> 

Nevermind, I measured it again, and it was 9.8v when it was hot, and warmed
up for a bit, so I guess thats fine, only .2v off.

Regards - Jim Mitchell
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, December 01, 2003 6:59 PM
Subject: Re: Filament Issue


 > Original poster: robert & june heidlebaugh <rheidlebaugh-at-desertgate-dot-com>
 >
 > Yes!.. Low heater voltage will always give low output. The filament heat
 > supplies the source of current to the tube. low heat low output.
 >     Robert   H
 > --
 >
 >
 >  > From: "Tesla list" <tesla-at-pupman-dot-com>
 >  > Date: Mon, 01 Dec 2003 08:03:34 -0700
 >  > To: tesla-at-pupman-dot-com
 >  > Subject: Filament Issue
 >  > Resent-From: tesla-at-pupman-dot-com
 >  > Resent-Date: Mon, 1 Dec 2003 08:10:04 -0700
 >  >
 >  > Original poster: "Jim Mitchell" <electrontube-at-sbcglobal-dot-net>
 >  >
 >  > Hi, I was testing the voltage to the filament on my 813 tube in my
VTTC,
 >  > and I noticed that it was like 4v, when the 813 has a 10v filament!  I
am
 >  > wondering, is this a bad thing?  The filament does get hot, and the
VTTC
 >  > works, but it doesn't work optimum, could low heater voltage cause
this?
 >  >
 >  > Regards - Jim Mitchell
 >  >
 >  >
 >
 >