106 primary spring 102 is mounted in groove 109 primary spring 102 has an end 103 and an end 104 end 103 is held by notch 30 and end 104 is held in groove 109 spring 102 biases rotor 106 to a fail safe position a metal bifurcated contactor 116 is mounted to post 111 contactor 116 has ends 117 and 118 contactor 116 is heat staked to post 111 contactor 116 can be made out of a precious metal alloy such as paliney 16 flange 110 extends through hole 142 of cover 140 seal 120 is mounted around and seals flange 110 a polyimide film or element 124 is mounted in slot 144 between posts 145 film 124 has a pair of resistor tracks 125 a pair of conductors 126 and a pair of contact pads 127 and 128 clips 134 are pressed over contact pads 127 128 and sensor terminals 47 the clips make an electrical connection between the contact pads and the sensor terminals the end 117 of contactor 116 is in contact with one of the resistors 125 the other end 118 is in contact with the other resistor 125 in operation as rotor 54 rotates ends 117 and 118 wipe or slide along resistor tracks creating a potentiometer a voltage is applied between contact pads 127 and 128 as contactor 116 slides the voltage drop changes across the resistors and.