JR, I've just checked this and you're correct. I've simulated mains voltage drop with my auto transformer and there it was.JR. wrote:That looks like dropping out of regulation. Consider making reservoir cap larger to reduce ripple voltage as easier and cheaper fix than buying bigger transformer.
or not...
JR
I think I'll add some wire to the transformer, because I can't go any larger with the caps because of the room restriction. Hopefully, a couple more volts won't take that much to wind
Curiously, only positive rail goes out. The negative one still regulates. I wonder what's going on there...