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Original Text (Annotation: EPW048130 / 1040495)
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S G BROWN RADIO RELAY PRODUCTS LTD
Claimed first use of the term "loudspeaker".
1910/1911 Sydney George Brown formed a new company, S. G. Brown Ltd, to manufacture telephone equipment. With his wife's assistance, he designed a telephone relay, an improved receiver, and an effective loudspeaker (the Browns being first to use this name for the device).
With the advent of radio broadcasting the company manufactured crystal receivers and, later, valve receivers. The company also manufactured horn loudspeakers and expanded greatly into the manufacture of various types of headphones. The company also produced moving coil loudspeakers, hearing aids and sound-on-disc recordings for talking pictures.
1915 With increasing demand for these products the company expanded making it necessary to move to larger premises in '''North Acton'''
WWII. The Admiralty took charge of S. G. Brown Ltd, replacing the Browns with its nominated directors. 1943 Brown retired and sold his interest in S. G. Brown Ltd, including all gyro compass and radio telegraphy rights, to the Admiralty. In retirement, he devoted time mainly to cultivating orchids.
The company moved in 1948 to North Watford then West Watford.
Purchased by the Teledyne group in 2008 and now trade as Teledyne TSS International. Some products continue to be sold under the SG Brown banner; principally gyrocompass and hand-steering units for military vessels.
Image of 1947 advert from www.gracesguide.co.uk under GNU Free Documentation Licence, Version equivalent to Creative Commons Attribution Licence. '