• Country
• United States of America (USA)

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

• Year
• 1961/1962

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 270742

• • Brand: Musaphonic

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

• Number of Transistors
• 7

• Semiconductors

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

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / "C": 6 x 1.5 Volt

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

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

• from Radiomuseum.org
• Model: All Transistor P-840A - General Electric Co. GE;

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

• Dimensions (WHD)
• 8.5 x 6.25 x 3.5 inch / 216 x 159 x 89 mm

• Notes

• The General Electric P-840A is a portable, battery operated 7 transistor AM band receiver.  The AM band frequency tuning range is 540 to 1600kHz.  Has push-pull audio output stage and push button operated dial light.

  The General Electric P-840B uses the same schematic and cabinet except uses different transistors in the push-pull output stage.

• Mentioned in
• Photofact Folder, Howard W. SAMS (Set 616 Folder 9; 1-1963)

• Literature/Schematics (1)
• Bunis, Transistor Radios, 2nd ed., 1996, p. 100

• Literature/Schematics (2)
• General Electric Service Notes (General Electric Radio Service Guide Volume IV page 27)

• Author
• Model page created by a member from A. 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