Theremin grounded

Hello

I´m still new and need your help.

I‘ve got a Moog theremin and it needs to be grounded. In Europe there are only power adapters with two plugs and no grounding option. There is an american version with three plugs, but I don‘t know, if I can use this one or if there are any other possibilities.

Many thanks for your help.

greetings Jeff

My Moog etherwave is connected to a Behringer keyboard amplifier. The amp is grounded. So the theremin is grounded through the keyboard amp.

Hej Jeff,

for my theremin I have used a case like this:
https://www.reichelt.de/steckergehaeuse-mit-schutzkontaktstecker-73-x-53-x-43-mm-ssg-200-sk-i-p35972.html?&trstct=pol_4 (2,99€)
together with a small transformer (1,99€)