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On 3/14/15 2:40 PM, Dave Buchanan wrote:
One of these days I plan to make a Tesla coil and have been gathering various components that could possibly be used. Recently I was offered 16 each large baby blue capacitors. I know looks don't count but they are impressive to look at. They are Cornell Dubilier DCMCE 1507, rated 4,700 µF at 450 VDC. They measure 3" x 5.625" and just happened to have resistors; Micron 94T, R7W, 51KQJ across each cap. Any chance these could be used for a Tesla coil project? Regards, Ronous Synch
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4700 uF, 450VDC are big electrolytic capacitors, not suitable for a
tesla coil. THey're good for DC filter applications, if you want to
build a DC supply. But they won't work for RF applications, like Tesla
Coils.
For a tesla coil, you're looking for 0.2 uF, 2kV kinds of caps or,
ultimately, 0.020 uF (20nF) at 20kV (which you get by stringing 10 of
the 2kV caps in series). Or 0.15 uF, or 1500V, or so forth.