Quote:
Originally Posted by Electronic M
When it comes to variacs and isolation transformers one thing to keep in mind is the failure mode is overheat....If you need to run a set with a higher power consumption than they are rated for it is perfectly safe to do so for several minutes provided you monitor temperature and avoid overheat.
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Not sure if that'll affect me right now. I got a variac with what seems to be a 1000w rating. It's 1.4kva and that factors over somehow. I forget which math brain melter formula it is(for me at least, math is not a favorite of mine.) As for the isolated transformer that's got a 250w rating. It's a tripplite model whatever. Seems really nice and sturdy. I have always enjoyed their products not being plastic crap but instead being nice, strong metal boxes. The tv has a sticker stating 170ish watts. Should be safe there.
I may end up building a dim bulb tester to go with this as well. I saw it on antiqueradio.org. The variac is plugged into the wall to meter voltage if the isolated transformer can handle that. Otherwise it's the other way around. Then the dim bulb tester is plugged in to control current. Then my watt meter is plugged in to measure volts, amps and of course, watts. Then the poor, doomed test subject. Err I mean TV set.
Next on my list. Finish my zenith and Meissner projects then start this. What should I begin with? I saw on antiqueradio.org this guy would start with power supply then test set if he was brave enough. Should I try that route?