RCA Theremin, USA, 1929
Acoustics
1929
RCA Theremin, electronic musical instrument played without touch, patented by Leon Theremin, Moscow, Russia, 1928, serial number 100023, cabinet number 67, with a pitch antenna and a volume antenna, plus a separated door knob from the Theremin cabinet, made by RCA (Radio Corporation of America), USA, 1929, with sixteen valves: each in a cardboard carton