I like taking things apart and come across a Very large (coil) it hard to pick up and very heavy. It says Plitron Salzer 8579 - V2 -06-2006 /45 F:50/60 Inpot:0-208-240 F:50/60 I am fascinated with electronics (BUT) don't know a lot. Ti is 12.5" across and 4" thick. Any Ideas? Thanks.