The fail safe transformer circuit 1, wherein said secondary winding of said transformer supplies the a.c. voltage signals to a rectifier for producing a d.c. control signal for a transductor which controls the supply of a.c. voltage to {HEAD ~ a transformer} having {TAIL ~ primary, secondary and tertiary windings} 
having
The fail safe transformer circuit 1 , wherein said secondary winding of said transformer supplies the a.c . voltage signals to a rectifier for producing a d.c . control signal for a transductor which controls the supply of a.c . voltage to { HEAD ~ a transformer } having { TAIL ~ primary , secondary and tertiary windings }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL