Doublet ID = 97790
Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)
- Year
- 9999/9999 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 162710
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 7
- Main principle
- TRF without regeneration; Screengrid 1926-1935
- Tuned circuits
- 5 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Alternating Current supply (AC) / 105; 115; 125 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- from Radiomuseum.org
- Model: Doublet ID = 97790 - Grigsby-Grunow -Hinds Co.
- Notes
- Advertised in August 1930. One dial (primary tuning control knob); push-pull af output stage.
- Price in first year of sale
- 143.50 $
- Circuit diagram reference
- Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
- Author
- Model page created by Hans-Joachim Korn † 16.11.15. See "Data change" for further contributors.
- Other Models
-
Here you find 201 models, 122 with images and 156 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)