Grace's Guide

British Industrial History

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H. J. Leak and Co

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December 1945
January 1949.
March 1949.
May 1949.
June 1949.
September 1949.
December 1951. TL/12.
June 1955. TL/10 and Point One.

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.

Early 1990s: Verity Group acquired Quad, Leak and Wharfedale.

1996 Management buyout.

See Also


Sources of Information

  • H J Leak timeline[1]