• Country
• United States of America (USA)

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

• Year
• 1955 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 80793

• • Brand: Musaphonic

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1U4 1U5 3V4

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / AC/DC 117=110-120/ 1.5 & 75 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Power out
• 0.11 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 648 - General Electric Co. GE;

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

• Dimensions (WHD)
• 10.625 x 6.5 x 3.75 inch / 270 x 165 x 95 mm

• Notes

• The General Electric radio models 645 (charcoal), 646 (red), 647 (green) and 648 (gray) are sharing the same Photofact and Beitman documentation - having the same schematic, chassis and case - but different colors. Tuning knobs, battery saver switch and handle are the same for 645 and 648 but different color to 646/647. On-off-volume knob and cabinet are all in different colors. The models have a selenium rectifier.

• Source of data
• Beitman Radio Diagrams, Vol. 15, 1955

• Literature/Schematics (1)
• - - Manufacturers Literature

• Literature/Schematics (4)
• Photofact Folder, Howard W. SAMS (Date 11-55, set 298, folder 5.)

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 2916 models, 2139 with images and 2042 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