Amp for B3 Deluxe?

Brand new to the world of theremins. I've narrowed my search down to a B3 Deluxe, and now researching amps. My budget is around $75 and I prefer a smaller amp for playing at home. Any suggestions? Thanks!

The Behringer KT-108, a small 15W keyboard amp with a 8" chassis, will work fine and sound very nice with the B3 and will at the same time provide the needed grounding through its 3-prong wall plug.

Thank you, Thierry!