The fluorescent lamp 2 has one filament 21 connected to {TAIL ~ the secondary winding} 14 of {HEAD ~ the transformer} 1 to be heated and another filament 22 connected to the secondary winding 15 of the transformer 1 to be heated 
The fluorescent lamp 2 has one filament 21 connected to { TAIL ~ the secondary winding } 14 of { HEAD ~ the transformer } 1 to be heated and another filament 22 connected to the secondary winding 15 of the transformer 1 to be heated
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH