• Year
  • 1934
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 335245

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superhet with RF-stage; ZF/IF 456 kHz; 2 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast and Short Wave (SW).
  • Power type and voltage
  • Alternating Current supply (AC) / 230 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Gulbransen 7D - Cromwell, Gulbransen NZ,
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 365 x 450 x 275 mm / 14.4 x 17.7 x 10.8 inch
  • Notes
  • 7-valve superhet with RF stage

    An export version of the Wells-Gardner & Co.; Chicago, Model 7D, modified to work on 230 VAC

  • Price in first year of sale
  • 27.50 NZ Pound
  • Mentioned in
  • -- Original prospect or advert (Star (Christchurch), Volume 66 Sep 1934, Page 36)
  • Author
  • Model page created by Brian Stevens. See "Data change" for further contributors.

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