R.G

Thanks for the insight and safety measures. I am use to working with AC systems not in amps, household wiring. Was thinking about measuring from chassis to earth ground and forgot about it, gotta get my meter from the shop next week and I will update. Thanks for the help. Appreciate it.

Quote from: g1 on January 05, 2018, 01:34:56 PM
Are you in a 120V or 240V country?
Can you post the proper schematic for the amp?

120V USA

Quote from: phatt on January 01, 2018, 09:36:13 AM
If you get a spark from that earth wire to case then don't use the amp as something is wrong and likely dangerous.
Wait till the tecks get over the new year hangover as they will know more. :lmao:
Meantime maybe post some pics of the internals especially around the power inlet and main transformer.
Phil.

Thanks for the advice, I wonder if the spark is just the ground draining and transient voltage but not sure. I guess the tech guys are still hung-over cause no one has commented. 

I have a Vox Buchingham amp that has a two prong AC cord. Amp hisses, and wonder if I should add a ground wire cord to the chassis and to the power supply, they are seperate. The RC plug I assume acts a a nuetural of sorts but not sure. Also is there a capaictor that needs to be eleimated when I do this. Touching a wire to the metal chassis to eart ground creates a rather good spark when it touches.

Thank You and Happy new Years All

Brett