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[AMPS] heating tubes....

To: <amps@contesting.com>
Subject: [AMPS] heating tubes....
From: 2@vc.net (measures)
Date: Wed, 6 Sep 2000 13:47:50 -0700
>
>measures wrote:
>>?  I have tested many metal anode-cooler 3-500Z tubes that g/fil. shorted 
>>after a big-bang.  The majority had under 3uA of grid/anode leakage at 
>>8000v.  The subsequent autopsies revealed no arc marks on the grid.  
>
>The reasons for observing low gas currents if you delay more than a few
>seconds after the event have been explained many times - "it's the
>gettering action".
>
In almost all cases, the mains breaker or mains fuses opened at the 
big-bang.  . 

>Does testing 3-500Zs cause amnesia? 
>
Gettering in cold 3-500Z's?.  Only in the Rauchian world.  

cheers, Ian.  

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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