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Majestic 31 Ch= 30 Screen Grid

Majestic 31 Ch= 30 Screen Grid; Grigsby-Grunow - (ID = 677472) Radio
 
Majestic 31 Ch= 30 Screen Grid; Grigsby-Grunow - (ID = 677473) Radio
Majestic 31 Ch= 30 Screen Grid; Grigsby-Grunow - (ID = 1640752) Radio
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Majestic 31 Ch= 30 Screen Grid; Grigsby-Grunow - (ID = 1640752) Radio
Grigsby-Grunow -: Majestic 31 Ch= 30 Screen Grid [Radio] ID = 1640752 933x1133
Select picture or schematic to display from thumbnails on the right and click for download.
For model Majestic 31 Ch= 30 Screen Grid, Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL):
ad in ARC vol.26, #9, p.14
 
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
Valves / Tubes 6: 24 24 24 45 45 80
Main principle TRF without regeneration; Screengrid 1926-1935
Tuned circuits 3 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC) / 110 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: Majestic 31 Ch= 30 Screen Grid - Grigsby-Grunow -Hinds Co.
Material Wooden case
Shape Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
Notes

One dial (primary tuning control knob); push pull af output stage.

External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Mentioned in A Blast from the Past (p.64)
Literature/Schematics (1) The Radio Collector's Directory and Price Guide 1921 - 1965 (p.239)
Literature/Schematics (2) Antique Radio Classified (vol.26, No.5, p.14 (as 30 which is the chassis!))


All listed radios etc. from Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)
Here you find 200 models, 118 with images and 156 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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