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1. [Amps] Gettering the GU-74B (score: 1): Author: Peter Junker <dg6man@pjconsult.de>; Date: Mon, 1 Nov 2010 21:36:40 +0100; Dear Fellows, What is the best procedure to getter a NOS GU-74B. A befriended OM brought me his fairly new ZZ 750 PA with a failure of the Zener diodes for the screen voltage. To get this "Kalashniko; /archives//html/Amps/2010-11/msg00005.html (6,758 bytes)
2. Re: [Amps] Gettering the GU-74B (score: 1): Author: Kees - pa7two <pa7two@hotmail.com>; Date: Tue, 2 Nov 2010 10:43:02 +0000; Hi Peter, I normally start with the following gettering schedule for the GU74B tubes: 1) No HV connected. Fan is connected at all times! 2) 20% of maximum filament voltage for 2 hours. 3) 40% of maxi; /archives//html/Amps/2010-11/msg00011.html (9,324 bytes)

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