Esaki Diode FM/SW/MW/LW Radio EFM-117L

Sony Corporation; Tokyo

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  • Year
  • 1964 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 263382

 Technical Specifications

  • Number of Transistors
  • 11
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 455/10700 kHz
  • Tuned circuits
  • 5 AM circuit(s)     11 FM circuit(s)
  • Wave bands
  • Broadcast, Long Wave, Short Wave plus FM or UHF.
  • Power type and voltage
  • Dry Batteries / C: 4 x 1.5 & 2.6 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Esaki Diode FM/SW/MW/LW Radio EFM-117L - Sony Corporation; Tokyo
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 300 x 167 x 60 mm / 11.8 x 6.6 x 2.4 inch
  • Notes

  • FM 86.5 - 108 MHz
    SW 6 - 18 MHz
    MW 530 - 1605 kHz
    LW 150 - 285 kHz

    FM mixer uses an Esaki Diode (Tunnel-Diode).
    Built-in 2.6 V mercury battery for the AFC circuitry.
    Jacks for MPX out, audio out, audio in and earphones.

    See also Sony EFM-117 (FM/AM) and EFM-117J (FM 76 - 90 MHz, SW and AM).

  • Author
  • Model page created by Bernhard Nagel. See "Data change" for further contributors.

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