[Amps] tubes

Thu Apr 10 17:00:26 EDT 2003

Most likely "getter" --- Mark  AA6DX

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]
On Behalf Of carl seyersdahl
Sent: Thursday, April 10, 2003 1:04 PM
To: Amps at contesting.com
Subject: [Amps] tubes

 This is something I should know , but it seems to have   escaped my
memory
bank. !!
 I have several 811A's and all of them have oblong shiny spots on the
plates, and they all glow a dull red under full power in an AL811 amp.
Are
these tubes defective ?? I was running about 70 watts input and about
600
watts out and all of the tubes show the same symptoms. !!! Thanks for
any
replies.
 carl / kz5ca       (I g = 90-100 ma.) (Ip 650 +-)

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