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Grunow 691 Ch= 6-F

Grunow 691 Ch= 6-F; General Household (ID = 681693) Radio
 
Grunow 691 Ch= 6-F; General Household (ID = 681694) Radio
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Grunow 691 Ch= 6-F; General Household (ID = 681693) Radio
Select picture or schematic to display from thumbnails on the right and click for download.
 
Country:  United States of America (USA)
Manufacturer / Brand:  General Household Utilities Co. (Grunow); Chicago Ill.
Brand
 
Grunow (trade name)
Year: 1935 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: 6D6 6A7 6D6 75 42 80
Main principle Superhet with RF-stage; ZF/IF 455 kHz
Wave bands Broadcast plus more than 2 Short Wave bands.
Details
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 10 inch = 25.4 cm
Power out
from Radiomuseum.org Model: Grunow 691 Ch= 6-F - General Household Utilities Co
Material Wooden case
Shape Console with any shape - in general
Notes Allwave 550 - 21800 kc in 4 bands.
External source of data Ernst Erb
Circuit diagram reference Rider's Perpetual, Volume 6 = 1935 and before


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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