• Year
  • 1958/1959 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 327803

 Technical Specifications

  • Number of Tubes
  • 4
  • Number of Transistors
  • 3
  • Main principle
  • Superheterodyne (common); Reflex
  • Tuned circuits
  • 8 AM circuit(s)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • Dry Batteries / 6 & 45 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: B4M78BT - Philips Mexicana S.A. de C.V.;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 15.75 x 11 x 6.875 inch / 400 x 279 x 175 mm
  • Notes
  • Philips B4M78BT is a battery operated 3-band hybrid (tube and transistor) radio.
    The 2nd IF stage is reflexed as the 1st audio amplifier stage.

    See also the Dutch model B3X71BT with similar circuitry.

  • Author
  • Model page created by Jeff Tucker. See "Data change" for further contributors.

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