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Otis selector elevator controller
1960's Otis Elevator Controller/Selector Mechanism + Governor Fly Ball
1970 Otis Elevator Controller
How an elevator FLOOR SELECTOR works
Otis pie plate selector on an express elevator
Closeup and relay-sequence of an Old OTIS elevator-controller
old OTIS elevator controller (1950)
Otis DC Gearless 800 fpm express elevator with "pie plate" selector
Very detailed OTIS LIFT MOTOR ROOM video (ALL MECHANICAL!)
Lift Elevator motor plant room controller selector Otis
Old Otis Selector
Closeup and relay-sequence of an Old OTIS elevator-controller 2
