Information AboutMullard |
| CATEGORIES ABOUT MULLARD | |
| defunct technological companies of the united kingdom | |
| vacuum tubes | |
| companies based in blackburn | |
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Mullard opened a new manufacturing plant at Mitcham , Surrey in 1929. A second building was added in 1936. Both buildings had a very distinctive flat roof construction and were very similar to those at Philips' headquarters in Eindhoven, Holland. Co-sited with the Mullard buildings was the manufacturing complex for Philips Radios. In the late 1930s Mullard opened a new plant in Blackburn , Lancashire. By 1949 Mullard had produced a number of Television sets, such as the MTS-521 and MTS-684. In 1951 Mullard was producing the LSD series of photographic flash tubes. Mullard also had Semiconductor factories in Southampton and Stockport . Both sites now operate as part of the Philips Semiconductors division. The one in Hazel Grove , Stockport specializes in Power Semiconductor Device s. The first Transistor s produced by Mullard were the OC50 and OC51 point-contact types, which were not widely used. In 1953 Mullard moved to junction transistors, beginning with the plastic-cased OC10 series. These were followed by the glass-encapsulated OC70 series, which were produced in large numbers and copied by other companies, such as Valvo (another Philips subsidiary), Intermetall and Siemens in Germany, and Amperex in the USA. In 1957 Philips-Mullard helped to set up the Mullard Radio Astronomy Observatory (MRAO) at the University Of Cambridge . In 1964 the company produced a prototype electronic desk calculator as a technology demonstrator for its transistors and Cold Cathode indicator tubes. In 1966 the Mullard Space Science Laboratory (MSSL) was opened near Dorking , Surrey as part of University College, London . The Royal Society Mullard Award for young scientists and engineers was set up in 1967 . Philips continued to use the brand name "Mullard" in the UK until 1988 . |
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