|Year: 1936–1938||Type: Broadcast Receiver - or past WW2 Tuner|
|Valves / Tubes||12: 6K7 6A8 6J7 6K7 6K7 6H6 6C5 6C5 6C5 6F6 6F6 5Z3|
|Reception principle||Superhet with RF-stage; ZF/IF 465 kHz; 3 AF stage(s)|
|Tuned circuits||9 AM circuit(s)|
|Wave bands||Broadcast plus 2 Short Wave bands.|
|Power type and voltage||Alternating Current supply (AC) / 117 Volt|
|Loudspeaker||Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm|
|from Radiomuseum.org||Model: Grunow Teledial 1291 Ch= 12B - General Household Utilities Co|
|Shape||Console with any shape - in general|
|Dimensions (WHD)||26 x 42 x 15 inch / 660 x 1067 x 381 mm|
This 1937 model must have been released in (late) 1936 to get the X-mas sales. It was advertised with Shirley Temple promoting the Radio with reference to her motion picture "The Bowery Princess" of 1936. Further: the schematic is found in Rider's Perpetual, vol.7, which covers End 1935 to End 1936, not later. All that justifies the dating 1936/37
|Net weight (2.2 lb = 1 kg)||35.45 lb (35 lb 7.2 oz) / 16.094 kg|
|Price in first year of sale||99.95 $|
|Source of data||Pre-War Consoles|
|Circuit diagram reference||Rider's Perpetual, Volume 7 = 1936 and before|
|Mentioned in||Collector's Guide to AR6.Ed. Slusser tube|
|Literature/Schematics (1)||Beitman Radio Diagrams, Vol. 01, 1926-1938 (Rider's Perpetual, Volume 8 = 1937 and before)|
|Literature/Schematics (2)||Radio Retailing (Radio & Television R.) (March 1937.)|
|Literature/Schematics (3)||The Grunow Folder for 1937 and 1938.|
Model page created by Walter Wiesmüller † May 2012. See "Data change" for further contributors.
All listed radios etc. from General Household Utilities Co. (Grunow); Chicago Ill.
Here you find 136 models, 98 with images and 126 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.