does everyone have frame ground issues ?

[ReWrite]

connecting into the monitors supply to supply other 120VAC items in the cab (power supply, light fixture). Everyone says its a no no.... Look in the back of a Baby Pac Man... Bally did it.

And then when the bulb starts to go the monitor does REALLY neat things in time with the flickering of the bulb as it draws all sorts of weird voltages away from the monitor.

 

[gamefixer]

And then when the bulb starts to go the monitor does REALLY neat things in time with the flickering of the bulb as it draws all sorts of weird voltages away from the monitor.

Those voltage spikes transfer through the ISO no matter what you do. Primary, secondary, doesnt matter what side youre on. Any large influence on the AC inside the cabinet will be seen on the monitor.