The fail safe transformer circuit 1, wherein said {HEAD ~ secondary winding} of said {TAIL ~ 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 a transformer having primary, secondary and tertiary windings 
The fail safe transformer circuit 1 , wherein said { HEAD ~ secondary winding } of said { TAIL ~ 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 a transformer having primary , secondary and tertiary windings
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH TAIL TAIL TAIL TAIL TAIL 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