• Country
• New Zealand-Aotearoa

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

• Year
• 1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 340146

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

• Number of Tubes
• 5

• Valves / Tubes
• 1N5GT 1A7GT 1N5GT 1H5GT 1A5GT

• Main principle
• Superhet with RF-stage; ZF/IF 175 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 90 & 1.5 Volt

• Power out
• 0.12 W (undistorted)

• from Radiomuseum.org
• Model: Portable 100 - Columbus Brand; Radio Centre

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

• Notes

• 5-Valve superhet with RF stage battery portable receiver.

  First in a long series of portable receivers.

  See also Columbus Models 101, 201, 301, 402, 402Z, 402X, 502, 653, 653A, 897P, PZ117 & 649P. 

• 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