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Registered Member #973
Joined: Tue Aug 28 2007, 07:32PM
Location: Pittsburgh, PA
Posts: 66
I have seen many attempts out there to build a flyback driven tesla coil, and i've seen some good ones and some bad. But anyway, i would like to show you all my 2nd flyback driven coil.
Specs: Half-bridge flyback driver from scopeboy.com http://www.scopeboy.com/tesla/flyback.html -IRFP250s, 555 driven -9-10 turn primary on flyback Adjustable 0-12V RSG made from wood, bolts, plexiglass, and a motor. 4x 590pF primary tank 30kV
Tapped 8-9 turn primary. 1-1/8"dia 6" tall sec (not sure of the wire gauge, from iron core transformer) 2" dia sphere topload, no breakout
Control 'box' containing 12v drive voltage for FB driver, 30V 'high' voltage for FB primary xformer w/ FW rectifier, rotary spark gap speed control.
It doesnt seem like much, but this coil works great. Average streamer length with no ground target: ~5" Average arc length to a ground: ~7-8"
This type of coil can be made, honestly, with junk. i spent maybe $25 on this whole project (only bought caps, mosfets, circuit board.) This is a great project i've worked on, and i would like to know if i can improve this anymore. Any comments?
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280 Watt Flyback Driven Tesla Coil
