"OPERATING VOLTAGE AT 1200 RPM GENERATOR 21 VOLTS, ALTERNATOR 28 VOLTS AND 5 VOLTS; 3 PHASES GENERATOR, 3 AND 2 PHASES ALTERNATOR; 2 POLES GENERATOR AND 12 POLES ALTERNATOR; DRIVE END RECEPTACLE MS33678-14S-6P, CONNECTOR END MS33678R-12S-3P; 0562 IN. LENGTH OF SHAFT FROM HOUSING; FLANGE MOUNTING METHOD; 4 UNTHREADED HOLE; 2.652 INCHES MOUNTING FACILITY CIRCLE DIAMETER; SELF EXCITED; 3 AND 6 RECEPTACLE TERMINAL TYPE AND QTY; A15 SINGLE STYLE SINGLE END; MECHANICALLY DRIVEN ELECTROMECHANICAL UNIT; TRANSMITS ELECTRICAL IMPULSES TO THE TACH INDICATOR WHICH SHOWS RPM IN PERCENT"