Isolating RCA and speakers jacks on an AB763

[Lambertini]

Hi there!

I've started a new AB763 build from scratch, with a 2 points ground schema in mind, one for the power section, one for the preamp.

To strictly satisfy it, I'm considering using isolation washers to isolate the reverb IN/OUT, reverb pedal and vibrato pedal RCA jacks; as well as the speaker and ext speaker phone jacks. Then properly wires the ground lugs to the bus bar.

Does it make sense? Is it just useless? Or is it leading to any trouble?

Thank you!

[pdf64]

I think it's pointless unless there's a single point 0V common connection to the chassis, or even more so if there's a hum break network between the circuit 0V common and the chassis.

[sluckey]

None of the jacks on the original AB763 amps were isolated.

[Lambertini]

Not too sure if I will not do it or if I'll just forget it... ;)
Thank you!