Ok, point taken. > Original Poster: Ed Phillips <evp-at-pacbell-dot-net> > > "Inductors theoretically don't dissipate power do they? > > Malcolm" > > Ones with saturated ferromagnetic cores certainly do! > > Ed I obviously missed the original bit about the iron core. I have to say I think the job can be done more cheaply and with a lot less hassle with an ordinary resistor. Malcolm