• Country
• New Zealand-Aotearoa

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

• Year
• 1946 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 368535

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

• Number of Tubes
• 5

• Valves / Tubes
• 6K8 6U7 6B8 6V6 6X5

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Alternating Current supply (AC) / 50 Hz, 230 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: Corvette 55R - Columbus Brand; Radio Centre

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 18.5 x 12.5 x 9 inch / 470 x 318 x 229 mm

• Notes

• Columbus 55R Corvette

  5-valve dual wave superhet receiver with 8" EM speaker for the smaller home. Variants include the 55, 55A (1946), 55R, and 55S , which appear to use different tuning capacitors and slightly different dial layouts.  The 55R is also noted in service literature as having different tone control circuitry (see schematics).  The 55S appears to have newer and more compact coils.

  Also available under the Courtenay brand.

• 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