• Country
• New Zealand-Aotearoa

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

• Year
• 1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 347521

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

• Number of Tubes
• 5

• Valves / Tubes
• 6A8 6K7 6Q7 6F6 80

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast, Short Wave(s) and Police.

• 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

• Power out
• 2 W (undistorted)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Gulbransen 5K [Mantel] - Cromwell, Gulbransen NZ,

• Shape
• Tablemodel, low profile (big size).

• Notes

• 5-valve 3 band superhet.

  Tuning frequency range:

  • 528 - 1730 kHz
  • 1710 - 5800 kHz
  • 5750 - 18300 kHz

  An export version of the Wells-Gardner & Co.; Chicago, Model 5K, modified to work on 230 VAC.

• Literature/Schematics (1)
• Rider's Perpetual, Volume 8 = 1937 and before

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

• Other Models

• Here you find 120 models, 114 with images and 105 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