"Telamon" wrote in message
...

I was going to ask you what the earth ground was supposed to be
connected to for the GFCI but you answered it in this post. The outside
metal cabinet. This is fine with the radio assembled but what about
while it is being worked on outside of the cabinet and connected to test
equipment? The only answer I know of here is an isolation transformer.

You cab easily have potentials between the test equipment chassis and
the radio if the equipment is plugged into another circuit, and mention
you could have ground loops.


That's right, I use an isolation transformer when I'm serviceing the radio.

Frank Dresser