• Year
  • 1940
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 93884

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 454 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • AC/DC-set / 110-130; 200-220 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 17 cm = 6.7 inch
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: 493U - Philips; Eindhoven tubes
  • Shape
  • Tablemodel without push buttons, Mantel/Midget/Compact up to 14
  • Dimensions (WHD)
  • 350 x 230 x 170 mm / 13.8 x 9.1 x 6.7 inch
  • Notes
  • 3 Band reception:
    • BC: 160 - 570 m.
    • SW1: 13,5 - 45 m.
    • SW2: 45 - 160 m.
    Tuning scale light bulbs type: 8092D (10V, 200mA).
    Loudspeaker Philips type 9648-06 or 9676. No connectors for external loudspeaker or pick-up. 
     
    This model is comparable with Siera S88U.

    There is also a variant 493U-06 with different wavelengths.

    There is contradictory data present in the schematics concerning the mains voltage. 2 voltage ranges are mentioned but no selector is found in the schematic nor does the current regulator tube serve as selector as is done with many of such models.

    Attention: The mains is connected to the chassis.

  • Net weight (2.2 lb = 1 kg)
  • 5.9 kg / 12 lb 15.9 oz (12.996 lb)
  • Literature/Schematics (1)
  • -- Original-techn. papers.
  • Author
  • Model page created by Hugo Sneyers. See "Data change" for further contributors.

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