There's probably a thread or 2 about this sort of thing out there somewhere, but I couldn't find one.
Would it work to use a fan controller in place of a variac when testing amps? I don't have a variac, and the're expensive and I would have to order one which would take a week, but I could get a variable speed fan controller easily. They're about $15US and rated 600W. I've had a channel of my Leach amp done for a couple weeks, and the power supply too, but I'm afraid to test it until I get something to bring up the voltage slowly, along with some current limiting, of course. I figure if a fan controller can control an induction motor, then it could probably controll my power supply transformer, as both devices are of much the same nature.
Would it work to use a fan controller in place of a variac when testing amps? I don't have a variac, and the're expensive and I would have to order one which would take a week, but I could get a variable speed fan controller easily. They're about $15US and rated 600W. I've had a channel of my Leach amp done for a couple weeks, and the power supply too, but I'm afraid to test it until I get something to bring up the voltage slowly, along with some current limiting, of course. I figure if a fan controller can control an induction motor, then it could probably controll my power supply transformer, as both devices are of much the same nature.