The Columbus model 66 was manufactured for Columbus Radio Centre Ltd by Radio Corporation of New Zealand Ltd in 1941, production ran for about 8 years.

6-valve dual-wave radio (bandspread).  Last of the wartime models before restrictions kicked in.

One of RCNZ's longest-running models (alongside the model 75) - although this was partly due to the war suspending domestic production.

Available in many different cabinet styles, the most common being the Warrior table model

Also subject to many modifications over its life.  This version covers the 66, 66E and 66J.  See the model 66A for that and the 66W.  Model 66R is unknown at the stage, possibly a radiogram version?

a 5-valve version (the model 56) was produced although it does not seem to have been nearly as popular or long-lived.

1941 Columbus model 66

1941 Columbus model 66

1941 Columbus model 66

1941 Columbus model 66

Valves (6):
Model 66 and 66J: 6K7G, 6K8G, 6B8G, 6J7, 6F6G, U50 or 5Y3G
Model 66E: 6K7G, 6K8G, 6B7, 6C6, 6F6G, U50 or 5Y3G

Intermediate Frequency: 455kc/s

Frequency Bands: 2

Chassis Notes(most schematics can be clicked to download a full size version)

Available in several different chassis variations, including the original model 66, 66E, 66J, 66A and 66W.  See schematics for notes on differences


RCNZ Model 66 Schematic


General Construction Notes for Radio Corporation of New Zealand Ltd: The first digit of the serial number typically indicates the year of manufacture of RCNZ chassis' (although not the decade - that requires a little knowledge of the valves, construction, etc). Sets from around 1934 onwards were often (but not always) constructed in a distinctive pressed 'baking pan' style chassis, seemingly unique to RCNZ.

All documented models using this chassis (2 in total)

1941Courtenay model 66
1941Columbus model 66 - this set