OUR PRODUCT MANUFACTURERS

  Mullard was a British manufacturer of electronic components and domestic appliances. They are so venerated in the electronic world that we named our business, Mullard Magic, after them. 1920 The Mullard Radio Valve Co Ltd. of Southfields, London, was founded by Captain Stanley R. Mullard, who had previously designed valves for the Admiralty before becoming managing director of the Z Electric Lamp Co. The company soon moved to Hammersmith, London and then in 1923 to Balham, London. 1924 Needing further finance to support development, Mullard sold half its shares to N.V. Philips of the Netherlands[1]. This partnership with Philips...

Murphy Radio of Welwyn Garden City 1928 Company founded. 1948 Private company. 1949 Company made public. 1953 Manufacturer of TV sets 1961 Manufacturers of radio and television receivers, testing equipment, radiograms, communications receivers and transmitters, radar equipment, aircraft equipment, nucleonic equipment, interference tracing and measuring equipment, electro-medical apparatus, diagnostic and therapy X-Ray equipment and thermionic tubes. 4,300 employees

The National Radio Company had a 77 year history, from 1914 through 1991. National Radio was first incorporated in 1914 as the "National Toy Company". By 1916 they had changed their product line to include household goods so they changed their name to the "National Company, Inc." A further product line change ocurred during the 1920s when National received their break from the Cardwell company.  The Cardwell capacitor representative in the Boston area, George Q. Hill, found that he could sell more capacitors then the Cardwell could supply so National began to supply him and sold all that they could manufacture. By...

The National Union Radio Corporation was incorporated in September 1929 to acquire the assets of three radio tube manufacturers; Sonatron Tube Company; Televocal Corporation; and the Magnatron Corporation.  This merger occurred during a period in which the demand for radio tubes was extraordinary. Through much of the 1920s the demand for tubes had been primarily for use in radio sets, which by 1929 numbered over nine million due to the growth of the radio broadcast industry. Each of these sets used between three to twelve tubes. The result was that between 1927 and 1928 the number of tubes sold for use...

  Marconi-Osram Valve Co 1919 Marconi-Osram Valve Company formed as company owned jointly by GEC and Marconi's Wireless Telegraph Co; it took over GEC's valve factory. 1920 Name of company changed to M-O Valve Co[. 1920 Jan. Physical and Optical Societies Exhibition. Exhibited wireless telegraphy. 1927 Recorded as being a subsidiary of GEC 1929 Gramophone Co acquired Marconiphone Co as well as Marconi's share in M-O Valve Continued to supply valves to Marconi. 1956 GEC purchased EMI's share in the M-O Valve company. 1969 Formation of GEC Electronic Tubes to bring together M-O Valve and English Electric Valve Co, a company which would have half of UK valve production, the...