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Registered Member #1989
Joined: Fri Feb 20 2009, 05:28AM
Location: Edmonton Alberta, Canada
Posts: 17
This is a small TC I made in a few hours on a sunday afternoon. I all started with the toriod I made from the bottoms of two pop cans I cut apart and stuck together. After that I had to make a coil for it!
Some of the specs:
Primary, 6 turns of #16 on a 4" pvc form Secondary, Aprox 800 turns of very fine wire from a bath fan motor on a 2" x 3" form. Tank cap, One 20Kv 1400pF ceramic doorknob capacitor Power supply, 6Kv 30mA NST Torroid, Two pop can bottoms put together and pollished.
The secondary has quite a few coats of polyurathane but still throws off corona around the top windings, and even gets the odd primary strike. To finish the ends of the secondary I plugged the end with a piece of plastic about 1/2" in and attach a nut and bolt to the wire and then fill in the end with epoxy. This makes a strong connecting point for small coils.
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
wow that coil is awesome Although from what i understand your sparks are usually supposed to be longer than the transformer is But considering how high of a frequiency your are running for such a crappy spark gap that isnt half bad!
I really like your torroid, although judgingby your issues with corona at the top it isn't working to great. But hey if it works it works
banned on 5/26/2009 Registered Member #1877
Joined: Mon Dec 22 2008, 02:03AM
Location:
Posts: 147
I have the same NST as you, only white box. nice coil. dont you just love the smell of ozone on a sunday? lol. i took that quote from somewhere. forget xD
Registered Member #1643
Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039
While eating some good candy, it made me ask.. Can an Altoids tin actually work too? the bottom larger half is smooth on the outside..I mean.. If you have one why not try? My mosfets are shot at the moment else I would :(
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Pop can TC
Although from what i understand your sparks are usually supposed to be longer than the transformer is 
But considering how high of a frequiency your are running for such a crappy spark gap that isnt half bad!
