[TenTec] Centurion

[Robert & Linda McGraw K4TAX]

I'll be interested to read all the answers on this one.

73 & Merry Christmas to all.

Bob, K4TAX


----- Original Message ----- 
From: <CATFISHTWO at aol.com>
To: <tentec at 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    """"""
>
>
>
>
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