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Grunow 631 Ch= 6-M

Grunow 631 Ch= 6-M; General Household (ID = 684015) Radio
 
Grunow 631 Ch= 6-M; General Household (ID = 684016) Radio
 
Grunow 631 Ch= 6-M; General Household (ID = 684017) Radio
Grunow 631 Ch= 6-M; General Household (ID = 776508) Radio Grunow 631 Ch= 6-M; General Household (ID = 776509) Radio
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Grunow 631 Ch= 6-M; General Household (ID = 776508) Radio
General Household: Grunow 631 Ch= 6-M [Radio] ID = 776508 450x600
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For model Grunow 631 Ch= 6-M, General Household Utilities Co. (Grunow); Chicago Ill.:
Sold in 2005
 
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 6: 6A8 6K7 6K7 6Q7 6F6 5W4
Main principle Superheterodyne (common); ZF/IF 465 kHz
Tuned circuits 9 AM circuit(s)
Wave bands Broadcast plus 2 Short Wave bands.
Details
Power type and voltage Alternating Current supply (AC)
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: Grunow 631 Ch= 6-M - General Household Utilities Co
Notes Different power transformers are used for 115 V (50-60 cycle), 115 V (25-50 cycle) or 115, 135, 220, 250 V (50-60 cycle) mains supply.
Circuit diagram reference Rider's Perpetual, Volume 8 = 1937 and before

Model page created by Hans-Joachim Korn † 16.11.15. See "Data change" for further contributors.



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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