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[Amps] 2 Ways of Gettering...

To: <>
Subject: [Amps] 2 Ways of Gettering...
From: Patrick Barthelow <>
Date: Tue, 13 Sep 2011 07:41:41 -0700
List-post: <">>

Hello Willy, 

What I learned from this forum, was a second 
gettering process, after being familiar with the first, and which I have
 used on 3-500Z family of tubes.   That is the process of 
running the plate with significant color which activates the gettering 
material on the outside of the plate, to do the gettering process.

 gettering of External Anode tubes,  is different, where sustained 
normal temperatures of the hot cathode, provide the gettering action, 
which is done  by the cathode, not the plate.
Best Regards,   
Pat Barthelow AA6GE

> From:
> Date: Tue, 13 Sep 2011 10:18:38 -0400
> To:
> Subject: Re: [Amps] Amps Digest, Vol 105, Issue 9
> A lot of folks on this site do not understand the "Gettering process" !  
> Bringing a tube up to normal operating parameters is not gettering! I suggest 
> that these folks "Google" the gettering process before talking about it. 
> Willy  Worth  K3VW

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