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Otis 69UA is an Otis traction elevator controller. This is a relay logic controller. This controller was used from 1940s?-1970s?.

Elevator Machine Room Tour 1965 Otis Gearless Traction elevator Relay Logic Unit-004:20

Elevator Machine Room Tour 1965 Otis Gearless Traction elevator Relay Logic Unit-0

Otis 69UA controllers in action

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