57 Frigidaire Washers
My WI 57 washer does have a gray tub that matches the dryer, the washer also has the more conventional thermostatic inlet valve. But you are absolutely correct Michael Frigidaire did use the cycling thermostatic inlet valves here on Pulsamatic models, these cycling valves were an early electromechanical version of the electronic thermostatic cycling valves that were reintroduced on KM DD washers in the late 1980s.
My WI 57 washer does have a gray tub that matches the dryer, the washer also has the more conventional thermostatic inlet valve. But you are absolutely correct Michael Frigidaire did use the cycling thermostatic inlet valves here on Pulsamatic models, these cycling valves were an early electromechanical version of the electronic thermostatic cycling valves that were reintroduced on KM DD washers in the late 1980s.