On Thu, 21 Jan 2016 13:19:44 -0600, Jon Elson wrote:

I've never been in a position to work on a switcher before owing to the
lack of an isolation transformer until very recently, so I was unaware of
that. Well, if push comes to shove and there's no alternative, I'll have
to jack up the juice to 230V and we'll find out then one way or another.