A vital type of transformer circuit including {TAIL ~ a saturable core transducer} having an input and {HEAD ~ an output} winding 
A vital type of transformer circuit including { TAIL ~ a saturable core transducer } having an input and { HEAD ~ an output } winding
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH