• Country
• United States of America (USA)

• Manufacturer / Brand
• Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)

• Year
• 1929/1930

• Category
• Power supply/conditioner or battery or charger 

• Radiomuseum.org ID
• 43705

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

• Number of Tubes
• 1

• Valves / Tubes
• 80

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 100-130 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Majestic A.C. Electric Power Unit 9P6 - Grigsby-Grunow -Hinds Co.

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 12.75 x 9.5 x 6 inch / 324 x 241 x 152 mm

• Notes

• AC Electric Power Unit for the Majestic "90" and "100" series. 50 - 60Hz

• Net weight (2.2 lb = 1 kg)
• 37 lb 0 oz (37 lb) / 16.798 kg

• External source of data
• Ernst Erb

• Source of data
• - - Manufacturers Literature

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Literature/Schematics (1)
• Beitman Radio Diagrams, Vol. 01, 1926-1938

• Other Models

• Here you find 201 models, 122 with images and 156 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grigsby-Grunow (-Hinds) Co. (Majestic pre 1933); Chicago (IL)