Clifton Precision EGH-8-F-7/F509 400 Hz Synchro Transmitter. rotor : 1 phase 25v stator : 2 phase 11.8v full specs available upon request. SI Code: 40-684-258 status : NOS ( New Old Stock) new in the box complete with original test certificate. RoHS : No. (but no hazardous materials used in construction)