CN308 308

Vidor Ltd.; Erith (Kent)

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  • Year
  • 1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 314484

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 450 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries / 2 & 90 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 7 inch = 17.8 cm
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: CN308 308 - Vidor Ltd.; Erith Kent
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 295 x 290 x 210 mm / 11.6 x 11.4 x 8.3 inch
  • Notes

  • The Burndept 309 is the same chassis. The Burndept 312 is a similar table model using TH2 rather than a FC2A and higher HT. The Burndept 314 has additional pushbuttons.

    There are two scale lamps operated by a button on the wavechange switch, 2V 300mA

    HT is Vidor L5039 or Vidor N°17060 (looks like the L5039). LT is the Vidor N°12007 accumulator, or any lead acid 2V cell that fits. Grid bias is via resistors between HT- and LT-, giving -1V and -5.5V.

    There is an internal frame aerial with coils for LW and MW. The chassis is removed by unclipping the handle and unbolting the handle studs. The output valve is a dual pentode for push pull, so a 4:1 driver transformer is used.

  • Literature/Schematics (1)
  • Radio Marketing Service Engineer, August 1940
  • Author
  • Model page created by Michael Watterson. See "Data change" for further contributors.

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