COURTENAY MODEL 19 'AJAX'

Manufactured for Turnbull & Jones Ltd by Radio Corporation of New Zealand Ltd in 1950.

5-valve broadcast band tablegram - for further details see Columbus version.

Valves (5):
19 & 19R: 6A8, 6K7 or 6U7, 6Q7, 6K6, 6X5
19N & 19P: 6BE6, 6BA6, 6AV6, 6AQ5, 6X4

Intermediate Frequency: 455kc/s

Chassis Notes: Chassis variants:

19 : gram switch is toggle beside platter

19R : gram switch changed to rotary type, incorporated with tone control

19N : Updated to use miniature valves

19P : 3-speed RCNZ belt-drive turntable

1949 Columbus model 19 Schematic

1949 Columbus model 19R Schematic

1949 Columbus model 19N 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)

YEARMODEL NAME
1949Columbus model 19
1950Courtenay model 19 - this set