• Country
• United States of America (USA)

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

• Year
• 1933–1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 18666

• • Brand: Grunow (trade name)

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

• Number of Tubes
• 11

• Valves / Tubes
• 78 6F7 78 6B7 85 37 45 45 45 45 5Z3

• Main principle
• Superhet with RF-stage; ZF/IF 262 kHz

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 115 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 1101 Selectrol Ch= 2A&9B - General Household Utilities Co

• Shape
• Console, Lowboy (legs < 50 %).

• Notes

• Wired remote control.

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Rider's Perpetual, Volume 4 = ca. 1934 and before

• Circuit diagram reference
• Die «Thali Schemasammlung» führt das Modell.

• Mentioned in
• Pre-War Consoles

• Literature/Schematics (1)
• Rider's Perpetual, Volume 5 = ca. 1934 and before

• Literature/Schematics (2)
• Machine Age to Jet Age II (page 154.)

• Literature/Schematics (3)
• The Grunow Folder for 1934.

• 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.