Sir Francis nice work. I am interested in how you used parts from the vacuum tube for your filament. I cant seem to find fuse wire... not sure if that is because we don't carry it in the States. Once I find a filament to use is there anything I need to consider when hooking up the + and - leads (heat sink/isolation from the filament)? My HL smoke unit only works when it wants to and I think I am going to attempt making my own. Any and all help is greatly appriciated.

Thanks,

Pat