The HMV S200 was manufactured for His Master's Voice (New Zealand) Ltd by Collier & Beale Ltd in about 1941.

HMV S200 6-valve bandspread radio (may also be referred to as SB200)

This was HMV's first bandspread radio, designed and built for them by Collier and Beale in Wellington.

The model date was either 1940 or (most likely) 1941, confirmation required.  Advertising appears to have started mid-1941.  Some adverts show a slightly different cabinet and dial layout as per the two below - most likely these are the same electrically though.

Otago Daily Times, 22 May 1941


1940 HMV SB200 The Listener 18 July 1941

The Listener 18 July 1941

Technical Information

Valves (6 + magic eye):

Intermediate Frequency: 465kc/s

Frequency Bands: 5

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

1940 HMV SB200

Service information (HMV_200SB_-_6V_Bandspread_AC_-_1940-41.pdf) here

Service information (HMV_200SB_-_technical_notes.pdf) here

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.