COLUMBUS 32A 'EXETER' (CIRCA 1953)

The Columbus 32A was manufactured for Columbus Radio Centre Ltd by Radio Corporation of New Zealand Ltd in about 1953. It's part of the Columbus Exeter series of radios.

6-valve broadcast band receiver. 

Updated model 32 with miniature valves and updated dial artwork

Same cabinet as found in several other models, such as the 26n, 27 and 62

The Columbus 32A is part of the Columbus Exeter series of radios.

The models 27 and 32 were the dual wave and broadcast band (respectively) table models from Columbus in 1948.  The cabinet style was pretty standard for sets from Columbus around this era.  There were quite a few variants, so expect to see a suffix letter of some sort

The radios in this series are:

Technical Information

Valves (6):

Frequency Bands: 1

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

No service information held, possibly similar to the original model 32 - also see the 27N and 27M for possible circuit configuration for miniature valves

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.

Model codes beginning with a 0, for example the model 051, are Osram valve versions of the model without the leading 0. Technically the 0 should be an O (for Osram), however the digit 0 was used throughout the site before this fact was discovered.

The E suffix indicates a magic eye option is fitted (in models which were available with or without, such as the model 25).

A and B suffixes appear to be simply updates to the current model, R also appears to be simply an updated model ('R'edesign, perhaps?)

P indicates either a permanent magnet speaker version of a model which also came with an electromagnet speaker (the model 26 for example), or a portable model (like the model 694P).

N and M indicated miniature valve versions of a model which started with all (or a mix, ie: model 5) of larger valves. One of these two codes may indicate a transitional mixture of octal and miniature - clarification is required.

S often indicates a stereo model.  It can also indicate 'self-biased' in the transition period between back-biased and self biased sets where there were models with both methods employed (53S for example)

Finally, other suffixes and prefixes make occasional appearances in the RCNZ lineup - like the 66W (a variant of the long-running model 66) and the 75XA (a 10-valve version of the model 75 with a separate amplifier chassis).