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Majestic 116 Type 3

Majestic 116 ; Grigsby-Grunow - (ID = 670390) Radio
Majestic 116 ; Grigsby-Grunow - (ID = 670391) Radio
Majestic 116 ; Grigsby-Grunow - (ID = 670392) Radio
Majestic 116 ; Grigsby-Grunow - (ID = 670393) Radio
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Majestic 116 ; Grigsby-Grunow - (ID = 670390) Radio
Select picture or schematic to display from thumbnails on the right and click for download.
Country:  United States of America (USA)
Manufacturer / Brand:  Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)
Year: 1933 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: 57AS 58AS 58AS 85 89 6Y5
Main principle Super-Heterodyne (Super in general); ZF/IF 175 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage Storage Battery for all (e.g. for car radios and amateur radios) / 6 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Model: Majestic 116 [Type 3] - Grigsby-Grunow -Hinds Co.
Material Metal case
Shape Miscellaneous shapes - described under notes.
Notes This radio is made to be mounted under the dashboard of a car. There are 4 versions of this radio and are designated Type 1, 2, 3 and 4 (116A). Types 1 through 3 have serial numbers between 10,001 and 16,036. Type 3 matches schematic #175-B and differs from Type 1 by having an 85 tube for the 2nd detector, 6Y5 for the rectifier, added 4,000 ohm R17 and R18, omitted R5 and C22 and have a different bias circuit. The rectifier filament is separate from the others and connected to the white/red wire from the control unit.
Circuit diagram reference Rider's Perpetual, Volume 3 = 1933 and before

Model page created by Robin Roeckers. See "Data change" for further contributors.

All listed radios etc. from Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)
Here you find 200 models, 118 with images and 154 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.