On Mon, Jan 14, 2013 at 6:29 AM, Mike Harrison wrote= : > On Mon, 14 Jan 2013 08:12:34 -0500, you wrote: > > >On 1/14/2013 6:16 AM, Forrest Christian wrote: > >> I'm looking for a way to produce a 60Hz sinewave at voltages ranging > from a > >> couple volts all the way up to 120V RMS or higher (250 would be > wonderful). > >> This needs to be able to be either digitally or voltage controlled. > It > >> also needs to be current limited to a couple/few mA. > > For this sort of thing, and audio amplifier driving a reverse- connected > mains transformer can > provide a quick & cheap solution > > My thoughts exactly. I've also used a variac for this type of thing manually... I've seen systems with very large variacs driven by a large servo drive as well. Variations on the theme could range from "cheap and cheerful" and up. -Denny --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .