Grace's Guide To British Industrial History

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Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 163,152 pages of information and 245,599 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

H. J. Leak and Co

From Graces Guide
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 audio amplifier and a loudspeaker.

Late 1920s: Occupied 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 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

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Sources of Information

  • H J Leak timeline[1]