• Country
• United States of America (USA)

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

• Year
• 1956 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 82619

• • Brand: Musaphonic

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

• Number of Transistors
• 6

• Semiconductors

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

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / D: 4 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Transistor P-720 - General Electric Co. GE;

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

• Dimensions (WHD)
• 9.5 x 6.5 x 3.25 inch / 241 x 165 x 83 mm

• Notes

• See also P-720B and P-721.

  The difference between the P-720 and P-721 is the color of the leather case.  The B models have a battery box instead of paper tubes to hold batteries. The schematic are the same for  all models.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 17, 1957

• Mentioned in
• Collector's Guide To TrR1 Bunis trans.94 (1996, page 92)

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

• Other Models

• Here you find 2916 models, 2140 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