Difference between revisions of "BTH: Mazda"
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[[image:Mazda Lamps 1920SG.jpg|thumb| 1920. ]] | |||
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[[image:Im192103HG-Mazda.jpg|thumb| March 1921. ]] | [[image:Im192103HG-Mazda.jpg|thumb| March 1921. ]] | ||
Revision as of 23:51, 6 December 2015
Note: This is a sub-section of BTH
A brand of electric filament lamps for cars and other uses, and electronic valves, made by BTH Rugby.
1911 BTH acquired licences for all of General Electric's drawn-wire light bulbs, which they produced under the Mazda trademark[1].
1911 Electrical Exhibition. Mazda lamps from 6 to 600 watts and other equipment[2].
WWI Using its experience in making filament lamps, BTH became a manufacturer of radio valves.
1926 Obtained a six months' contract for the supply of Mazda vacuum and gas-filled lamps to the Southern Railway.[3]
1928 BTH ceased valve making except for special purpose valves that it required for its production of non-domestic electronic equipment[4]
1937 British Industries Fair Advert for Lighting Products, including Mazda Mercra; Projector Lamps; Mazda Gas-filled and Mazda Vacuum Lamps; Light Tubes for Architectural Lighting; B. T. H. Lighting Equipment for Street, Industrial and Floodlighting; Maxdalux Floodlight Projectors; etc. (Stand No. Cb.607 and Cb.504) [5]
1946 Formed Glass Bulbs Ltd jointly with GEC; supplied the blown glass envelopes used by M-O Valve and as well as other valve makers[6].
See Also
Sources of Information
- ↑ The Engineer of 25th August 1911 p197
- ↑ The Engineer of 13th October 1911 p388
- ↑ The Engineer 1926/02/19
- ↑ Competition Commission report
- ↑ 1937 British Industries Fair Advert inside front cover; and p340
- ↑ http://www.competition-commission.org.uk/rep_pub/reports/1950_1959/fulltext/020c02.pdf