The Columbus model 60 was manufactured for Columbus Radio Centre Ltd by Radio Corporation of New Zealand Ltd in 1938.

Columbus Model 60, 5-valve dual-wave radio with push button tuning

6 pushbuttons, only 4 operate as tuning buttons, the first two are for BC or SW selection.

Baby brother of the model 65

Valves (5): 6K8G, 6K7G, 6B8G, 6F6G, 5Y3G

Intermediate Frequency: 464kc/s flat-top (see supplement)

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

1939 Courtenay model 60 Schematic

1939 Courtenay model 60 Service Supplement

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)

1939Courtenay model 60
1938Columbus model 60 - this set