(( SERVO-SYSTEMS COMPRISING SERVO-MOTORS AND SERVO-GEARBOXES THEREFOR; RATE TRANSDUCERS;)) POSITION TRANSDUCERS; PALUSE GENERATORS; (( ELECTRICAL CONNECTORS; ELECTRONIC ASSEMBLIES COMPRISING PRINTED CIRCUIT BOARDS FOR PULSE GENERATORS AND COUNTING SYSTEMS; ELECTRICAL SWITCHES; RESOLVERS; TACHOMETERS; ENCODERS COMPRISING DIGITAL, INCREMENTAL ENCODERS FOR CONVERTING ROTATIONAL MOTION TO ELECTRICAL IMPLUSE SYSTEMS