In 1934 Harold Joseph Leak founded H.J. Leak & Co in London, UK – and promotes the company with his own name, adversting himself as “Sound Engineer – Technician”. In 1936 Leak & Co. release a P.A. Amplifier, with exhibits at Olympia Exhibition. 13 Watts output using push-pull PX25 power triodes. 40Hz to 12kHz +/- 1dB.
H.J. Leak does not appear in listings of exhibitors for Olympia, so the company may have used another company’s stand for the exhibit). This amplifer was supposedly advertised in Wireless World around 1938, although a search has failed to locate the advertisement. About 1949/1950 the Leak “550” two-way moving coil loudspeaker was released. This loudspeaker was used in the many live-versus reproduced sound demonstrations Harold Leak conducted. Harold Leak died on August 27, 1989.
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