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Registered Member #2288
Joined: Wed Aug 12 2009, 10:42PM
Location: Cambridge, MA
Posts: 179
ZakWolf wrote ...
Those cores are huge!
Finish any of them ?
Gren, those are some long arcs(~12inches?) and hi current
Mine dont have that much current but it starts and arc at 2,5 inches
Yes, I finished all of them. The giant x-ray transformer was about 40 hours of winding and was a total waste of time, it didn't perform well at all. I think it may have arced over internally. The ferrite ones all did quite well and can process significant power. The one with 8 U-halves could probably sustain 5-10kW and can surge higher, although insulating it is a nightmare and it really needs to be in an oil tank to do well at jacob's ladder duty etc. since it makes immense voltage when there is no load on it (enough to have the corona literally catch the bobbin on fire within seconds).
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Homemade Transformers
