The Columbus Exeter, a 5-valve broadcast-band only radio. Believed to have been originally released as the model 26 with octal valves, then shortly afterwards as the 26N using miniature valves. A permanent magnet speaker version, the 26P, also exists.
There is also a dual wave Exeter - the model 27, and later the 27N.
Chassis Notes (most schematics can be clicked to download a full size version): Uses miniature valves (the 'N' designation is in keeping with RCNZ sets around this era that used them). Has gram input from factory.
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.
|1952||Columbus 26N - this set|