Disclosed is an electrical control circuit for controlling {TAIL ~ current} through {HEAD ~ a furnace coil} or other resistive load  
Disclosed is an electrical control circuit for controlling { TAIL ~ current } through { HEAD ~ a furnace coil } or other resistive load
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH