crawfish wrote: > I need a schematic of an amp using a single 450TL. I have only one, and need > to use it for something other than a lamp :-). > Joe W4AAB I never had a schematic for it, but have put B+ through it, once. Tube draws a good amount of current, even at half-voltage on the filaments. The fil xfrmr is 220v primary (7.5v @ 15 amp secondary) -- 73