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Grunow 451 Ch= 4-A

Grunow 451 Ch= 4-A; General Household (ID = 681255) Radio
Grunow 451 Ch= 4-A; General Household (ID = 720611) Radio
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Grunow 451 Ch= 4-A; General Household (ID = 720611) Radio
General Household: Grunow 451 Ch= 4-A [Radio] ID = 720611 439x569
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For model Grunow 451 Ch= 4-A, General Household Utilities Co. (Grunow); Chicago Ill.:
Image Courtesy of Mark V. Stein for Radiomuseum.org use only.
 
Country:  United States of America (USA)
Manufacturer / Brand:  General Household Utilities Co. (Grunow); Chicago Ill.
Brand
 
Grunow (trade name)
Year: 1936 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: 6F7 6F7 42 84
Main principle Superheterodyne (common); ZF/IF 455 kHz
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast and Short Wave (SW).
Details
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
Power out
from Radiomuseum.org Model: Grunow 451 Ch= 4-A - General Household Utilities Co
Material Wooden case
Shape Console with any shape - in general
Notes

Ivory lacquer wood with chrome grille.

Stein "Cathedral & Tombstone Radios" lists 1 band for this model.

External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 7 = 1936 and before
Mentioned in Machine Age to Jet Age II (page 152.)
Literature/Schematics (1) Cathedral & Tombstone Radios (page 130.)


All listed radios etc. from General Household Utilities Co. (Grunow); Chicago Ill.
Here you find 138 models, 99 with images and 126 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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