• Country
• New Zealand-Aotearoa

• Manufacturer / Brand
• Cromwell, Gulbransen (NZ), Pacemaker, (Brands) Clarke, H. W.; Wellington

• Year
• 1934

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 369673

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

• Number of Tubes
• 7

• Valves / Tubes
• 6D6 76 6D6 6D6 6B7 42 80

• Main principle
• Superhet with RF-stage; ZF/IF 456 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Alternating Current supply (AC) / 50 Hz, 230 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Gulbransen 7D [Console] - Cromwell, Gulbransen NZ,

• Shape
• Console with any shape - in general

• Notes

• Gulbransen 7D

  7-valve dual wave superhet with RF stage console receiver.

  Features include:

  • Triple-indicator aeroplane dial
  • Automatic volume control
  • Full range tone control
  • Current consumption only 70 watts
  • 7 latest type valves
  • Handsome piano-finish cabinet of artistic design
  • Selective and sensitive to a degree

  An export version of the Wells-Gardner & Co., Chicago, Model 7D.

  Chassis Made in the USA. 

• Price in first year of sale
• 31.00 NZ £

• Mentioned in
• -- Original prospect or advert (Marlborough Express 9 June 1934 Page 7)

• Literature/Schematics (1)
• Rider's Perpetual, Volume 5 = ca. 1934 and before (Pages 5-9 and 5-10)

• Author
• Model page created by Brian Stevens. See "Data change" for further contributors.

• Other Models

• Here you find 145 models, 142 with images and 132 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Cromwell, Gulbransen (NZ), Pacemaker, (Brands) Clarke, H. W.; Wellington