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[Amps] COLLECTING 91B PROBLEMS

To: amps@contesting.com
Subject: [Amps] COLLECTING 91B PROBLEMS
From: Alex Aimette <w2ox@verizon.net>
Date: Tue, 20 Mar 2007 16:30:42 +0000
List-post: <mailto:amps@contesting.com>
NOW THAT V47KP IS EQUIPPED WITH TWO 91B amps after using an lk550 for 12 
years, I am collecting 91B probelms---just in case.  So far I have:
the following:

1 failure of xfmr x3,  with the step-start resistors failing once after 
the xfmr failed.
2-failure of vacuum relay x1
3- failure of tubes after 4 years  x1

Anyone else have any Alpha 91B problemsw to report?   Let me know either 
here or at   w2ox@verizon.net

I will post the results of this research here.

alex, w2ox

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