STATE 617R (1948)

The State 617R was manufactured for Wright Stevenson Ltd by Collier & Beale Ltd in 1948.

6-valve broadcast-band set, miniature valve version of the 617P

Valves (6): 6BA6, 6BE6, 6BA6, 6AT6, 6AQ5, 6X4

Intermediate Frequency: 455kc/s

Frequency Bands: 1

Chassis Notes(most schematics can be clicked to download a full size version) Tone control on side, one of the very first NZ models to use the new 7-pin miniature valves (model 727 was apparently the first).

Despite the code being 617, the schematic is dated 1948.

General Construction Notes for Collier & Beale Ltd:

Model numbering followed no real sensible scheme until around 1940 - and prior to 1934 apparently no model numbers were assigned at all.

From 1940 a 3- or 4-digit system was employed where the first digit indicates the number of valves, the second digit is the number of bands and the third is the year of manufacture.  From 1950 the last digit became two digits, eg: 5151 is a 5-valve broadcast-band only from 1951.

From 1957 model numbers were replaced with model names, ie the Pacemaker Buffalo - which makes the year of manufacture hard to determine unless service info is consulted (although C&B often released service info after the radio, and the date on the service info was for its release, not that of the model.

All documented models using this chassis (2 in total)

YEARMODEL NAME
1947Gulbransen model 617
1948State 617R - this set