Grunow Teledial 1291 Ch= 12B

• Country
• United States of America (USA)

• Manufacturer / Brand
• General Household Utilities Co. (Grunow); Chicago Ill.

• Year
• 1936–1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 97331

• • Brand: Grunow (trade name)

• Picture
• Schematics

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Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 12

• Valves / Tubes
• 6K7 6A8 6J7 6K7 6K7 6H6 6C5 6C5 6C5 6F6 6F6 5Z3

• Main 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

• Material
• Wooden case

• 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

• Notes

• 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
  Beitman shows Grunow chassis: 12B, 12W for models: 1291, 1297 for the same schematic. The same is for Rider's page 7-35 for General Household. One might think both chassis are used for both models but we believe it is meant only that the Grunow chassis 12B is used for model 1291 and the 12W chassis for model 1297. Therefore we show two models, not 4 as other sources. See this article containing Teledial models. Also Teledial models of other brands are covered. In particular the nine 1936/37 Grunow models presented in "Radio Retailing", March 1937, are linked.

• 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 Antique Radios (6th edition)

• 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.

• Author
• Model page created by Walter Wiesmüller † May 2012. See "Data change" for further contributors.

• Other Models

• Here you find 138 models, 100 with images and 126 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Household Utilities Co. (Grunow); Chicago Ill.