• Country
• New Zealand-Aotearoa

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

• Year
• 1960 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 361812

• Number of Transistors
• 7

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

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

• from Radiomuseum.org
• Model: Seven - Columbus Brand; Radio Centre

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

• Notes

• Columbus Seven 

  7-transistor portable. Similar to Astor Bondi.

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

• Other Models

• Here you find 176 models, 138 with images and 164 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Columbus (Brand); Radio Centre Ltd.; Wellington