- Country
- United States of America (USA)
- Manufacturer / Brand
- Radio Products Manufacturing Co. (RPM); Chicago, IL
- Year
- 1925
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 52588
Radio Industry, April 1925, p.42
- Number of Tubes
- 6
- Valves / Tubes
- Main principle
- TRF (Tuned-Radio-Frequency but use of regeneration unknown)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Storage and/or dry batteries / 4 & 90 Volt
- Loudspeaker
- - This model requires external speaker(s).
- Material
- Wooden case, TUBES VISIBLE.
- from Radiomuseum.org
- Model: 50 - Radio Products Manufacturing
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 30 x 5 x 11 inch / 762 x 127 x 279 mm
- Notes
-
Three dials (primary tuning control knobs). Mounted on wooden base. "A" storage battery or dry cell, "B" 90 Volts.
Listed as RPM-50 in "Vintage Radio".
- Net weight (2.2 lb = 1 kg)
- 13.5 lb (13 lb 8 oz) / 6.129 kg
- Price in first year of sale
- 100.00 $
- Source of data
- Radio Collector`s Guide 1921-1932
- Mentioned in
- Radio Industry, April 1925, p.42
- Literature/Schematics (1)
- Vintage Radio 1887-1929, Greenwood's Classic Pictorial Album (2nd Edition, p.251)
- Author
- Model page created by Peter Rutishauser. See "Data change" for further contributors.
- Other Models
-
Here you find 23 models, 10 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Radio Products Manufacturing Co. (RPM); Chicago, IL