[Amps] power supply transformer

[Tom W8JI]

> On a correctly built direct rectified power supply there 
> will be ALWAYS
> neutral/ground hardwired to chassis ground.
> This can be forced by a two-pole mains relay which only 
> gets energized with
> correct polarity on the wall plug.
> The "ground" side of the amp then will never be at 120V 
> above ground.

Not if the device meets codes.

A neutral is not allowed to be connected to exposed chassis 
or to the safety ground anyplace except at the mains panel.

73 Tom