Hello all,
I have an Alpha 8100 with a pair of GU74B/4CX-800 Tetrodes. I recently
had a problem occur with the amp going into a fault condition as soon as
any drive was applied.
Through some help from RF Concepts, I isolated the problem to an open
series resistor that supplies screen voltage to the tubes. It's a 15
ohm/1 W resistor.
My question.....what would be the most likely cause for this resistor to
fail open?
--
73,
Gary K9GS
Greater Milwaukee DX Association: http://www.gmdxa.org
Society of Midwest Contesters: http://www.w9smc.com
CW Ops #1032 http://www.cwops.org
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