Marquisa CN431

Vidor Ltd.; Erith (Kent)

  • Year
  • 1955
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 101748

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Number of Transistors
  • Main principle
  • Superheterodyne (common); ZF/IF 470 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Line / Batteries (any type) / AC-DC: 200-210; 220-230; 240-250 / 7.5 & 90 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm
  • Power out
  • 0.25 W (0.4 W max.)
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: Marquisa CN431 - Vidor Ltd.; Erith Kent
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 14.5 x 9.5 x 5.75 inch / 368 x 241 x 146 mm
  • Notes
  • Rexine type material on plywood with plastic grill, handle and knobs.

    Similar chassis and style to earlier Gala CN421 and Royal Ascot CN427, but possibly a cost reduced scale cover. These models use a higher capacity type of battery pack compared to the smaller attache sets.

    Weight excludes battery packs, the larger L5536 90V HT (Ever Ready B138) and L5060 7.5V LT (Ever Ready AD43). HT about 180 hrs and LT perhaps 90 Hrs. Obviously the lower capacity B126 (about 1/3) and AD38 (about 1/2) will actually connect, fit and work.

    WARNING!
    As with the nearly identical Gala CN421 and Royal Ascot CN427 the chassis can be live during mains operation as it's a resistive dropper with chassis direct to one mains wire. The mains should be on a socket attached to rear panel, thus automatically disconnected when the rear door is open, however sometimes these have been later removed, which makes the set very dangerous. The mains / battery operation selection is an internal switch.

    Built in loop aerial for MW and LW.

    Released February 1955. Price excluded batteries and purchase tax.

  • Net weight (2.2 lb = 1 kg)
  • 4.4 kg / 9 lb 11.1 oz (9.692 lb)
  • Price in first year of sale
  • 15.10 GBP
  • Author
  • Model page created by Peter Hoddow. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model Marquisa is part of the collections of the following members.

 Forum