- Country
- United States of America (USA)
- Manufacturer / Brand
- Echophone Radio, Inc. - see also (The) Radio Shop or Hallicrafters Inc.
- Year
- 1930/1931
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 37969
-
- Brand: Ufonic
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- Main principle
- TRF without regeneration; Screengrid 1926-1935
- Tuned circuits
- 3 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Alternating Current supply (AC) / 115; ? Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Material
- Wooden case
- from Radiomuseum.org
- Model: F - Echophone Radio, Inc. - see
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Notes
- Push-pull AF output stage. Reference for the date: "Los Angeles Radio Manufacturing" by Floyd A. Paul. (1988), page 13: shows that in Autumn 1930, Echophone moved at least the production from Hollywood to Illinois and for December show in a service manual from December 1930 the chassis of S-3, S-4, S-5 and F. The schematic diagram of S-3 has a date of 9-5-30.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)
- Other Models
-
Here you find 83 models, 40 with images and 44 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Echophone Radio, Inc. - see also (The) Radio Shop or Hallicrafters Inc.