British Thomson-Houston
British electrical engineering company, later part of AEI and GEC.
Last updated October 5, 2026
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Overview
British Thomson-Houston (BTH) was a British electrical engineering company founded in 1896, based in Rugby. It was a subsidiary of the American General Electric and later merged into Associated Electrical Industries (AEI) in 1928, which was acquired by GEC in 1967. BTH was known for manufacturing electrical equipment including turbines, generators, and traction motors.
Products and positioning
Product categories. Electrical equipment · Turbines · Generators · Traction motors
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