radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

Duplicate with ID=43681

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
Valves / Tubes 8:
Main principle TRF without regeneration; Neutrodyne
Tuned circuits 4 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Alternating Current supply (AC) / 90-130 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: Duplicate with ID=43681 - Grigsby-Grunow -Hinds Co.
Material Wooden case
Shape Console, Lowboy (legs < 50 %).
Notes

This is the late version of Majestic model 71 from 1929 and later. See also the early version from 1928 with quite a different housing and chassis version 7A. We have found a picture of this later version as a low boy but are not sure if there is also a high boy with chassis version 7B - and vice versa. The difference can be seen on the plate: There you find the chassis Majestic 7, model 70 in the version 7A. This set and the early version have a push-pull output stage using two 171 power tubes. The Majestic 71 is made of walnut with burl walnut front panels and came with a Majestic electric power unit and Majestic dynamic power speaker.

Price in first year of sale 137.50 $
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Literature/Schematics (3) The Grigsby-Grunow Co. Folder "electric Radios" for Majestic.

Model page created by Ernst Erb. 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.



  
rmXorg