Try this guy,
He is repeating what us tube types know...
http://www.qsl.net/kk5dr/Tubes.html
Rich
K5SF
>From: Robert & Linda McGraw K4TAX <RMcGraw@Blomand.Net>
>Reply-To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
>To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
>Subject: Re: [TenTec] Centurion
>Date: Sat, 10 Dec 2005 23:08:07 -0600
>
>I'll be interested to read all the answers on this one.
>
>73 & Merry Christmas to all.
>
>Bob, K4TAX
>
>
>----- Original Message -----
>From: <CATFISHTWO@aol.com>
>To: <tentec@contesting.com>
>Sent: Saturday, December 10, 2005 4:05 PM
>Subject: Re: [TenTec] Centurion
>
>
> >
> > there is a component in side the tube called a "getter" and if storing a
> > tube for any length of time while in the radio it is good practice for
>you
> > to
> > turn on the amp for a bit ( like an hour) once a month or so to allow
>the
> > getter
> > to colect the stray atoms of other gasses let in the tube while being
> > manufactured. Especially true on highh power transmit tubes... or so the
> > story
> > goes YMMV
> >
> > tom N6AJR
> >
> > """"""
> >
> > Often when those glass tubes set for a while they collect gas,
> >
> > Usually people will turn the amp on for a day or so after storage
>without
> > High Voltage to let the filiments draw the gas out of the tube,
> >
> > If you apply HV too soon, the gas could ionize and blow a hole in the
> > grid.
> > Usually with a nice sounding pop....
> >
> > If you see the purplish color at the top of the tube when you key the
>TX,
> > you got some gas in the tube.
> >
> > This is the most prevelent cause of Tube death for tube amps.
> >
> > Check the tubes....
> >
> > Best wishes,
> > Rich
> > K5SF """"""
> >
> >
> >
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
>
>
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