A three-wire plug will guarantee that any time there is power in the rig the chassis is at ground potential, whether you remembered to reconnect the ground lead or not. If you use a two-wire non-polarized plug, there is no guarantee that the fuse is in the hot lead. 73, Bob AD3K > On Feb 18, 2019, at 10:47 AM, K5MYJ <macklinbob at gmail.com> wrote: > >