• Country
• New Zealand-Aotearoa

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

• Year
• 1950 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 305938

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3 inch = 7.6 cm

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

• from Radiomuseum.org
• Model: Columbus 402 [402Z] - 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

• Portable AC or battery powered receiver.

  Cabinet is made from wood and vinyl covered wood.

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

  See also Model 402 (original no variant), Model 402A variant and Model 402X variant.

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

• Price in first year of sale
• 36.00 NZ £

• Mentioned in
• -- Original prospect or advert (Gisborne Herald, Dec 20, 1950 page 10.)

• Literature/Schematics (1)
• More Golden Age of Radio (Page 118)

• Author
• Model page created by Taniwha Sutherland. See "Data change" for further contributors.

• Other Models

• Here you find 167 models, 128 with images and 156 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Columbus (Brand); Radio Centre Ltd.; Wellington