On Tue, Jun 21, 2011 at 04:55, Cortland Richmond <ka5s at earthlink.net> wrote: > We may not be able to do this for > long; efficiency regulations actually forbid making (and maybe selling) > linear-regulated (i.e.: dissipative) power supplies Care to cite a source for this? -- Peter Laws | N5UWY | plaws plaws net | Travel by Train!