- Country
- United States of America (USA)
- Manufacturer / Brand
- United American Bosch (Magneto Corporation); Springfield (MA)
- Year
- 1928
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 32463
-
- alternative name: American Bosch Magneto
- Brand: Essex
- Number of Tubes
- 8
- Main principle
- TRF (Tuned-Radio-Frequency but use of regeneration unknown); 2 AF stage(s)
- Tuned circuits
- 3 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Alternating Current supply (AC) / 110 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Material
- Wooden case
- from Radiomuseum.org
- Model: 28 A - United American Bosch Magneto
- Shape
- Console with any shape - in general
- Notes
-
One dial (primary tuning control knob) This set was also produced in Canada for Bosch and for Victor Talking Machines, LTD (V28). In some literature we found tubes 225 (which are only existing as Full-Wave Mercury-Vapor Rectifier from Kindermann) but this should be 226.
- Price in first year of sale
- 170.00 $
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- Circuit diagram reference
- Radio College of Canada
- Mentioned in
- RCC Bosch section page 4 and Victor section page 3.
- Other Models
-
Here you find 414 models, 165 with images and 272 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from United American Bosch (Magneto Corporation); Springfield (MA)