Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 126,753 pages of information and 199,764 images on early companies, their products and the people who designed and built them.
Designer and maker of audio equipment, especially amplifiers, of Acton, London.
1927 Harold Joseph Leak constructed a pickup for 78 rpm records, an amplifier and a loudspeaker.
Late 1920s: Occupired new business premises in Hammersmith, West London.
1931 Harold Leak conducted a test transmission of stereo sound with D. W. Turpin.
1934 Founded H. J. Leak and Co.
1936 Released 13W amplifier
1940 Moved to Shepherds Bush after bomb destroyed Hammersmith works; built amplifiers under contract
Late 1940s Moved to the Westway Trading Estate in Acton; released the TL/12 amplifier as well as a pickup arm and moving coil pickup with diamond or sapphire stylus.
1949/50 Released the a two-way moving coil loudspeaker
1961 Sandwich loudspeaker released
1963 Transistor amplified introduced
1969 Acquired by Rank Organisation; Acton premises demolished; Harold Leak retired.
1996 Management buyout.