• Country
• New Zealand-Aotearoa

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

• Year
• 1949

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 367913

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

• Number of Tubes
• 7

• Valves / Tubes
• 7B7 7S7 7B7 7C6 6U5 7C5 7Y4

• Main principle
• Superhet with RF-stage; ZF/IF 455 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
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: Gulbransen 729 - Cromwell, Gulbransen NZ,

• Shape
• Tablemodel, with any shape - general.

• Notes

• Gulbransen 729

  7 valve (including magic eye) dual wave superhet with RF stage mantel receiver. Latest Loctal tubes, spin drive tuning and clear full vision dial. £47/10/-

  Manufactured by Collier & Beale Ltd for H. W. Clarke Ltd.

  See also Ensign 729 & Cromwell 729.

• Price in first year of sale
• 47.50 NZ £

• Mentioned in
• -- Original prospect or advert (Hauraki Plains Gazette 18 May 1949 Page 4)

• Literature/Schematics (1)
• More Golden Age of Radio (Page 102)

• 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