[Amps] condition 4-1000A tubes?

[Dave White]

Hi Dennis
I've usually just installed them in a socket with the correct chimney and blower and powered up the filament starting at a very low voltage (say half a volt) and over the course of a week built it up to the regular filament voltage.  I've never had any failures like this.  Don't apply any other voltages during that period.
Cheers
Dave G0OIL

-----Original Message-----
From: "Dennis A. Homerick" <DHomerick at neo.rr.com>
To: "Amps" <amps at contesting.com>
Sent: 22/01/2010 21:23
Subject: [Amps] condition 4-1000A tubes?

Can someone point out a good source of information on how to properly condition a 4-1000A tube that has been on shelf for a very long time.

Thanks

Dennis, w8nw
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