The latest engineering and technology from the 1930s: A large Mercury Arc Rectifier used for converting alternating current to direct current These are the first high voltage (20,000 volts) rectifiers to be built in England at the new BBC Droitwich station.

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Size: 3818px × 2598px
Location: United Kingdom
Photo credit: © De Luan / Alamy / Afripics
License: Licensed
Model Released: No

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