Majestic Chassis 20
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
- 1931
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 43613
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 8
- Main principle
- Superhet with RF-stage; ZF/IF 175 kHz; Screengrid 1926-1935
- Tuned circuits
- 7 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Alternating Current supply (AC) / 110; 220 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Material
- Metal case
- from Radiomuseum.org
- Model: Majestic Chassis 20 - Grigsby-Grunow -Hinds Co.
- Shape
- Chassis only or for «building in»
- Notes
- Riders vol 1, Majestic 1-14 shows models 20, 21, 22, 23. The 20 can be misunderstood as a model, which is not the case. In 1-15 the 20 is clearly shown as being a chassis only.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
- Other Models
-
Here you find 201 models, 122 with images and 157 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)