• Country
• United States of America (USA)

• Manufacturer / Brand
• General Electric Co. (GE); Bridgeport CT, Syracuse NY

• Year
• 1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 42287

• • Brand: Musaphonic

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

• Number of Tubes
• 5

• Valves / Tubes
• 1A7GT 1N5GT 1H5GT 1T5GT 35Z5GT

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Power type and voltage
• Line / Batteries (any type) / 105-125, 1.5-90 Volt

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet. / Ø 5 inch = 12.7 cm

• Power out
• 1.75 W (unknown quality)

• from Radiomuseum.org
• Model: HB-504 - General Electric Co. GE;

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 13.2 x 9.5 x 6.5 inch / 335 x 241 x 165 mm

• Notes
• Automatic volume control.

• Net weight (2.2 lb = 1 kg)
• 7.5 kg / 16 lb 8.3 oz (16.52 lb)

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 11 = ca. 1940 and before

• Literature/Schematics (1)
• General Electric Radio Service Notes 1939-1942

• Other Models

• Here you find 2918 models, 2141 with images and 2044 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Electric Co. (GE); Bridgeport CT, Syracuse NY