1950's RCA Cartridge Player with Sounds in Space Demo Tape

This is a 1950's RCA 1YB-11 ( 2 vacuum tubes) mono cartridge recorder/player I got cheap a few years ago in non working order. I repaired it ( • 1958 RCA Sound Tape Ca... ) and this is an RCA stereo demo tape from back in the day. The large AC drive motor has a distinct mechanical hum. It has rewind but no fast forward. It is 2 speed (1 7/8 and 3 3/4 IPS) and the speed change simply forces the drive belt onto a different sized pulley.

[@FluxCondenser]

More info and demos of these remarkable tape cartridge players here: kzbin.info/aero/PLCH_MMh8A6cFLIcTPvQDsFQnS-gqspWEb

[@rawexploiterp6951]

Amazing!