Early activities
The company that would eventually become Ultra Electronics was started by wireless specialist Teddy Rosen as Edward E. Rosen & Co. during 1920. The firm was initially focused upon the manufacture of high quality headphones and loudspeakers.[4] During 1923, the company relocated to new premises at Harrow Road, London. In 1925, a new company, known as Ultra Electric Ltd., was formed; the Ultra name had been previously used for one of its products, the first commercial moving iron loudspeaker.[4]
During 1930, Ultra launched its first all-electric radio receiver.[4] During 1931, the firm introduced its first mains-powered wireless set, known as the Ultra Twin Cub. That same year, Ultra received its first order from the aviation industry, having been placed by the Japanese Kawasaki Company.[4] As a result of further expansion, the company moved to larger premises at Erskine Road, Chalk Farm, NW3 in 1932; three years later, a new 150000 sqft factory at Western Avenue, Acton.[4][5]
During the 1930s, Ultra manufactured a wide range of domestic radio receivers including the Blue Fox, Lynx, Panther and Tiger models.[5] In 1939, the company presented a television receiver to the market for the BBC High Definition Television Service which was transmitted on 405 lines from the studios at Alexandra Palace, north London.[6]
During the Second World War, Ultra diversified into aviation; the Short Stirling was the first aircraft to incorporate their products, the company acting as a subcontractor to produce tails and bomb doors for the bomber.[4][7] Ultra would produce a wide range of aerostructures for numerous aircraft throughout the conflict. The firm solely focused on wartime demands, only relaunching itself into the civilian market during 1947, although it would continue to have an interest in the military sector during the post-war period.[4]
Post-war
Ultra continued to manufacture products for the aviation industry after the conflict.[4] Various engines, including the Armstrong Siddeley Mamba and the Rolls-Royce Avon, incorporated components such as temperature regulators, fuel flow valves, and throttle controls produced by Ultra. Electronic control systems would become a key part of the company's product range.[4]
In 1953, Ultra started manufacturing television sets.[4] During 1956, the firm opened a new factory at Gosport for the production of both televisions and radio sets; Ultra acquired rival company Pilot Radio & Television in 1959. During the following year, Ultra reorganised itself, splitting into two divisions, one specialising in domestic radio and television and the other focused on all other electronic products.[8] In 1961, Ultra's consumer electronics interests became part of Thorn Electrical Industries, who continued to manufacture products using the Ultra brandname until 1974.
