> >The nameplates on those old transformers read 25Hz! > > Then I guess you had no problems with switching transients getting out and > upsetting other people :) Yeah, these things were pretty big iron. And we didn't have much in the way of transients: dimming was done with huge rheostats, no 'dimmer hash'! Bob Ammerman RAm Systems (contract development of high performance, high function, low-level software) > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.