[Amps] Buzzing transformer

[Carol Richards]

Hello all....

This past weekend I ran into a new problem in the CQWW-RTTY contest. For 
some reason, the power transformer in my Alpha 76PA started buzzing big time 
everytime it was keyed.. The transformer is solidly in the amp so that's not 
a problem. Early on, I asked a friend of mine in DL land if my signal was 
clean and he responded YES !!! Then Saturday evening I received a report 
that my signal had a buzz on it. Same problem on CW. I could understand a 
bad tone if the electrolytics were bad, but I am not sure. HV is good, no 
major drop when amp is keyed, and everything tunes up as usual. Anyone have 
an idea where to start troubleshooing the amp? Has anyone else had this 
problem?


Carol