• Country
• United States of America (USA)

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

• Year
• 1962 ??

• Category
• Kit (Parts plus instruction) or building instructions only

• Radiomuseum.org ID
• 195968

• • Brand: Musaphonic

• Number of Transistors
• 3

• Semiconductors

• Main principle
• Audio-Amplification

• Power type and voltage
• Storage and/or dry batteries / 6 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) generic. / Ø 2.5 inch = 6.4 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Project Intercom EF-130 - General Electric Co. GE;

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 11.5 x 8.5 x 3.5 inch / 292 x 216 x 89 mm

• Notes
• High impedance speaker (15 Ohms DC) with reed suspended between pole pieces, drives paper cone with a stylus, and is directly driven by the transistor collector, without an audio output transformer. Several contemporary GE transistor radio models also employed this kind of speaker which was originally used in the 1920's because of it's high efficiency and high impedance. The 3 transistors are given as ge-1 ge-2 ge-4 - not known if it is a real type number.

• Net weight (2.2 lb = 1 kg)
• 1 lb 0 oz (1 lb) / 0.454 kg

• Author
• Model page created by Joe Sousa. See "Data change" for further contributors.

• Other Models

• Here you find 2906 models, 2125 with images and 2031 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