I am a bit new at troubleshooting solid state so please be tolerant.
RIG: Corsair (1) / 260 PS
SYMPTOM: Noticed a hum on the transmit signal (cw) but only with headphones.
It was confirmed with a 577 report. The hum appears to have disappeared and
the rig will trip off when trying to load above about 60 watts. All antenna
and ground connections were checked.
I was wondering if it may be related to a weak or failing pass transistors in
the crowbar circuit or if I need to start a more detailed trouble shoot
procedure?
Thanks---Alan KB7MBI in Woodinville, WA
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