The Courtenay model 109 was manufactured for Turnbull & Jones Ltd by Radio Corporation of New Zealand Ltd in 1934.

Dual wave 5-valve radio - baby brother of the 108, fore-runner of the model 15

Valves (5): 2A7, 58, 2B7, 2A5, 80

Intermediate Frequency: 465kc/s

Frequency Bands: 2

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

1934 Courtenay model 109 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)

1934Courtenay model 109 - this set
1935Stella 5D