BA890

Murphy Radio Ltd.; Welwyn Garden City

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  • Year
  • 1975
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 90228

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

 Technical Specifications

  • Number of Transistors
  • 12
  • Main principle
  • Superheterodyne (common); ZF/IF 470/10700 kHz
  • Wave bands
  • Broadcast, (BC) Long Wave (LW), 2 x SW and FM or UHF.
  • Power type and voltage
  • Line / Batteries (any type) / 240 / D: 6 × 1,5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
  • Power out
  • 0.55 W (unknown quality)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: BA890 - Murphy Radio Ltd.; Welwyn
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 320 x 180 x 104 mm / 12.6 x 7.1 x 4.1 inch
  • Notes

  • Portable transistor radio with five wavebands:

    • LW 150kHz - 285kHz (2000-1050 metres)
    • MW 1620kHz - 515kHz (185 - 582 metres)
    • SW1 5.8MHz - 10.2MHz (31, 41, & 49 metre bands)
    • SW2 10.2MHz - 20MHz (16, 19, & 25 metre bands)
    • VHF 87.5MHz - 104MHz

    Transistors with Suffix:

    2SC784-O, 2SC785-O, 2× 2SC394-Y, 2× 2SC380A-O, 2SC380A-R, 2SC373, 2× 2SB186A, 2× 2SB405.

    Similar to the Bush VTR188 model.

     

  • Net weight (2.2 lb = 1 kg)
  • 3 kg / 6 lb 9.7 oz (6.608 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Bush Murphy Service Information TP1888 Models Bush VTR188 Murphy BA890 dated 1/1/75)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

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