• Year
  • 1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 78749

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superhet with RF-stage; ZF/IF 465 kHz; 2 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 100-125 / 200-250 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 10 inch = 25.4 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: A50 - Murphy Radio Ltd.; Welwyn
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 23 x 18 x 12 inch / 584 x 457 x 305 mm
  • Notes
  • 7-valve, All-Wave Supersonic Heterodyne receiver, combing extremely lively performance with outstanding quality of reproduction.

    Features include.

    • Improved A.B.C. tuning scale with over 50 medium and longwave station names in alphabetical order, as well as names for countries for shortwave reception.
    • Cathode ray indicator for easy and accurate tuning.
    • 4-position variable selectivity control.
    • Automatic volume control.
    • Inter-station noise suppression.
    • External speaker socket (AC model only) and gramophone jack.

    The cabinet design by R.D. Russel is beautifully veneered in rich-figured Honduras mahogany with a control panel in dark-silvered glass.

    See modification sheet for changes to the RF amplifier for serial numbers above 148802.

  • Net weight (2.2 lb = 1 kg)
  • 50 lb 0 oz (50 lb) / 22.7 kg
  • Price in first year of sale
  • 16.00 GB £
  • Mentioned in
  • - - Manufacturers Literature (Murphy 1938 Pamphlet)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Murphy 50 Service Instruction, 077/10/38)

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