COURTENAY MODEL 35 (1938)

The Courtenay model 35 was manufactured for Turnbull & Jones Ltd by Radio Corporation of New Zealand Ltd in 1938.

Gold trim with two different dials sighted. The round dial scale model could be the later version based on it having square IF cans. The more rectangular scale appears similar to that used on models such as the 95 from the same era. Note: many of these dials are badly perished and this could be a lacquer coating which is failing. Reporoductions have been made - again see the model 95.

 

Valves (5 + eye):
Early Version: 6A7, 6D6, 6B7, 42, 80 + 6E5 Magic Eye
Later Version: 6J8G, 6K7G, 6B8G, 6F6G, 5Y3G + 6E5 Magic Eye

Intermediate Frequency: 456kc/s

Frequency Bands: 2

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

Two known versions of the chassis - the first used 6- and 7-pin valves while the later revision uses octal valves and (at least in the Columbus version) has a simpler dial assembly.

1938 Columbus and Courtenay model 35 Schematic

1938 Columbus and Courtenay model 35

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.

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).

All documented models using this chassis (2 in total)

YEARMODEL NAME
1938Courtenay model 35 - this set
1938Columbus model 35