• Year
  • 1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 251749

 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 more than two Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical
  • Power out
  • 8 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 330 - Invicta Radio Ltd.; Cambridge,
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 17.75 x 20 x 11.25 inch / 451 x 508 x 286 mm
  • Notes
  • "World Wide range of reception (6 wavebands)". Two speed Push Pull tuning. Five colour dial has only band in use illuminated. Degree scale for station logging. Broadcast bands shown on SW and station names on MW & LW bands.

    Consumption 95W. Voltage not listed. But most models released 1938 in same Brochure are 200 to 250V 40Hz to 100Hz with 100V to 250V and 25Hz versions a "special order".

    Specification mentions tuning Indicator, TV4 presumed.

    PU/Gram input.

    Ext. Speaker out (2 Ohms).

    Wavebands:

    • LW: 800 .. 2000m (no RF preamp)
    • MW: 200 ..550m
    • SW1: 75 .. 200m
    • SW2: 28 ... 75m
    • SW3: 13 .. 30m
    • SW4: 6.5 .. 14m

     

  • Price in first year of sale
  • 17.85 GBP
  • Mentioned in
  • - - Manufacturers Literature
  • Author
  • Model page created by Michael Watterson. See "Data change" for further contributors.

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