I just gave up on the whole thing, bought a car battery and a $20 trickle charger. Two (both sides) 30A fuse holders and it even works after the power goes out. A bit heavy, but a great addition to the bench! Pretty clean power<g>! Dan / WG4S / K2 #2456 <snip> I would like some advice on the correct Ferrite beads </snip>