Radiogram and Home Recorder.

see autochanger mechanism  here  on Youtube

The following information copied off  this page 

RCA-Victor incorporated several new features into their deluxe radio-phonograph, for 1932 (introduced in late 1931.) Though the Microsynchronous receiver was still used in the lower-cost models, the RAE-59 had a newly designed ten-tube superheterodyne with Push-Pull 47s for greater audio power. The phonograph had a two-speed automatic changer that would continuously cycle through a stack of ten, 10" records loaded into the "magazine." The design of the changer allowed only a single side of each record to be played during the cycle which allowed about 35 minutes of music with 78RPM records and two and a half hours of music with RCA's new Program Transcription Long-Playing records. The new PTs were 10" in diameter and ran at 33.3RPM, featuring both popular and classical music. The changer would continue to play through the ten records as long as the user didn't interupt the cycle, however 78RPM records and PTs could not be intermixed on the automatic cycle. Additionally, one could make recordings off of the radio or using the "studio quality" double button microphone onto RCA Pre-grooved recording discs, (introduced in 1930).  The recording time was increased as the new pre-grooved discs were ten inches in diameter. The RAE-59 sold for a hefty $350.00 at a time when many manufacturers had trouble finding buyers for $50.00 radios.

RCA introduced these 33.3RPM long-playing records in late 1931. Produced through most of 1933, they were considered an engineering failure because the heavy pick-ups, used on all players at the time, caused severe wear to the fairly soft material used for PTs, (RCA called it "Victrolac.") Additionally, surface noise and frequency "wow" were problems in the early PTs. Introduced at the all-time low of record sales (due to the Depression) and with the increased price of PTs, combined with the fact that not many machines could play them (only expensive deluxe models,) PTs were almost assured of low customer interest and slow sales. Most PTs were 10" in diameter though a few 12" PTs were produced. A few PTs were single-sided. The labels were either gold or silver in color. Even though the PTs were a flop, some were still shown as available in the 1939 RCA catalog (old stock?)