Potentiometer/resistor made by Aerojet General Corp. for use with linear transducer as part of the pneumatic control system of the propellent control valve of the AJ10-137 rocket engine, as used in the Apollo Service Module's service propulsion system. The component measures approximately 3″ x 5″ x 1.75″ and is marked on the side: "Resistor, Variable, Dual, 2000 Ω, 0.5 W, Travel 1.75 Inches." Accompanied by copies of diagrams demonstrating the location of the potentiometer/resistor in the Apollo SPS engine.
