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[AMPS] runaway amp.

To: <amps@contesting.com>
Subject: [AMPS] runaway amp.
From: k7fm@teleport.com (Lamb)
Date: Fri, 23 Feb 2001 17:21:28 -0800
I now recall working on an Alpha 77 that had a similar problem.  Power
output creeped upward.  After awhile, the amp became very efficient.

It took a bit longer than it should have taken for me to realize that the
dummy load was heating up and increasing in resistance.  There was no
increase in power at all - just meter readings.  I then measured the dummy
load and learned that even cold it was over 55 ohms.

73,  Colin  K7FM


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