[TenTec] Centurion Amplifier history

[jack]

years ago when Eimac was here in SLC, Utah, I visited the place a few times. 
Vern Campbell and Irwis Isgitt were two hams I knew there. Vern was in 
charge of testing the 3- series of tubes at the time. he would drive a 
3-500Z with another 3-500Z to see how long it would last--and did the same 
with the 3-1000Z and the 4-1000A. he told me when such tubes became gassy 
and a customer sent them back, he would put them on the burner and run them 
red hot for at least 24 hours to burn off the gases, then send the tube back 
to the client.

he said the Eimac tubes were "getters" made to run hot!

jack
ak7o


-----Original Message----- 
From: Kimberly Elmore
Sent: Thursday, March 15, 2012 1:54 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Centurion Amplifier history

I've heard all sorts of variations on "burn-in." Is the appropriate burn-in
different for thoriated tungsten cathodes vs. oxide cathodes? What's an
authoritative recommendation?

Kim N5OP



________________________________
From: Stuart Rohre <rohre at arlut.utexas.edu>
To: tentec at contesting.com
Sent: Thu, March 15, 2012 2:37:12 PM
Subject: Re: [TenTec] Centurion Amplifier history

It has always been known in commercial service that for best service
performance you burn in power tubes.

Stuart Rohre
K5KVH
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