[Amps] PROBLEM WITH HUM

[Norman Hockler]

Your hum is coming from the SECONDARY of the transformer.  See K7RDX 
response. He is absolutely correct

Norm N8NH

At 01:29 PM 11/10/2008, Bob Gibson wrote:
>Hi..I have built a YC156 amp and I have a problem with hum in the 
>audio..I key the radio in SSB with the amp in line but not keyed and 
>I get this hum and its coming from the filament transformer..I 
>opened it up and disconnected the filament transformer then again 
>keyed and no hum..I have tried grounding all kinds of ways and still 
>hum..Would some beads help out? Thanks Bob W5RG
>
>_______________________________________________
>Amps mailing list
>Amps at contesting.com
>http://lists.contesting.com/mailman/listinfo/amps