ripple noise...

[Johan Persson]

Thanks for all the answers on the audio OP amps! There's still something
about my Fatman that bothers me, though...
There is a terrible 50Hz  noise on the audio output due to the
transformer I built into the box. I've tried to screen it etc, but this
is not really my area.
Any ideas would be appreciated! Maybe I have to move the transformer out
of the Fatman box.

Johan