• Year
  • 1933/1934
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 147949
    • Brand: Gecophone

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

 Technical Specifications

  • Number of Tubes
  • 8
  • Main principle
  • Superhet with RF-stage; ZF/IF 125 kHz
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 230 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Power out
  • 1.5 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 8-Valve Superhet BC3480 - GEC, General Electric Co Ltd.,
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • Suffix L denotes additional 120 V mainstransformer tap. Same chassis used in BC3484 and BC3488.

    Osram Valve Guide, August 1938 shows following tubes:
    VMS4, VMS4, ML4, VMP4G, MHD4, MH4(uncanistered catkin), MKT4, U14

  • Literature/Schematics (1)
  • "Radio Schakelingen" (J.G.R. van Dijck)
  • Author
  • Model page created by Gidi Verheijen. See "Data change" for further contributors.

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