• Country
• New Zealand-Aotearoa

• Manufacturer / Brand
• Columbus (Brand); Radio Centre Ltd.; Wellington

• Year
• 1948 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 338321

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

• Number of Tubes
• 5

• Valves / Tubes
• 1T4 1R5 1T4 1S5 3S4

• Number of Transistors

• Semiconductors
• Tr.Gl.=Metal-rectif.

• Main principle
• Superhet with RF-stage; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / 230 or 90 & 9 Volt

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: 402 [402A] - Columbus Brand; Radio Centre

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 320 x 280 x 160 mm / 12.6 x 11 x 6.3 inch

• Notes

• 5-valve superhet with RF stage portable broadcast (MW) receiver.

  The valve lineup changed at some stage to DF91 DK91 DF91 DAF91 DL92 Selenium Rectifier.

  The following variants of this are: Model 402 1947, Model 402X 1949? and Model 402Z 1950?

  Batteries: 2 x 45V No.482 and 1 x 9V C12.

  Cabinet made from vinyl-covered wood and wooden trim.

  Manufactured by Radio Corporation Of New Zealand Ltd for Columbus Radio Centre Ltd.

• Price in first year of sale
• 36.00 £

• Mentioned in
• More Golden Age of Radio (Page 118)

• Literature/Schematics (1)
• -- Original prospect or advert (Otago Daily Times 17 December 1947 Page 7)

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

• Other Models

• Here you find 162 models, 123 with images and 151 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Columbus (Brand); Radio Centre Ltd.; Wellington