Photophone PG-31 1st type
RCA (RCA Victor Co. Inc.); New York (NY)
- Country
- United States of America (USA)
- Manufacturer / Brand
- RCA (RCA Victor Co. Inc.); New York (NY)
- Year
- 1932
- Category
- Sound/Video Recorder and/or Player
- Radiomuseum.org ID
- 54381
-
- alternative name: RCA Manufacturing || Victor Talking Machine
- Number of Tubes
- 14
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- Alternating Current supply (AC) / 115 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- from Radiomuseum.org
- Model: Photophone PG-31 [1st type] - RCA RCA Victor Co. Inc.; New
- Shape
- Tablemodel, with any shape - general.
- Notes
- Portable talking motion-picture equipment for sound on film (35mm). Consists of projector (one or two, with fader), one pre- and two power amplifiers, and Loudspeakers (one to four stage units). Employs 2 photo-cells.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 3 = 1933 and before
- Other Models
-
Here you find 5131 models, 3234 with images and 4167 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from RCA (RCA Victor Co. Inc.); New York (NY)