Ground Issue

[Brad]

Hi everyone. I just acquired a HM100B and I'm working through some issues in getting it back to normal. One issue is that I'm feeling a small amount of electricity or buzzing when I touch the mech (145S3-L6). This happens when the MRA1 and the WSR6 are connected (with no tubes or wire harnesses connected). It does not happen when the MRA1 is disconnected. So, I'm thinking it's something in the amp. Nothing obvious upon first inspection. What should I suspect? Thanks for any suggestions.

[armandh]

in the days B4 grounded plugs most devices has a small cap and or high Z resistor to one side of the line

this prevented static build-up. my "berg" has been converted to grounded plug and I use a GFI "pig-tail"

OR some device may be leaky to ground. test everything that has a line voltage connection.

[Brad]

Thanks Armand. Do you agree that I should be looking first at the amp, since the buzz does not happen when the amp is removed?