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[Amps] Dimished Tube Life

To: <amps@contesting.com>
Subject: [Amps] Dimished Tube Life
From: "MICHAEL HUGHES" <mhughes149@verizon.net>
Date: Thu, 24 Sep 2009 22:43:13 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Hello all !

I wonder, and I hope someone can offer a reasonable explanation.  If I turn on 
my AL 1500 Amplifier, which uses the 8877 indirectly heated cathode tube when I 
come into the shack and then 4 hours later, I turn off the amplifier and go 
about my business, how much have I shortened that tubes' life ?

KE9AG

Mike..
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