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Banned on 3/17/2009. Registered Member #487
Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
Hey guys,
Today I was really bored at work and thinking of a better/faster way to make my coils. The part I hate the most is winding the primary. It takes too long to make a bunch of supports and drill a ton of holes and i really don't have the tools I need to do it. So today I made a new frame for a small coil and made notches directly in the supports with my table saw and wound the coil right around it. The wire is solid 10 awg stripped.
I haven't had a chance to test it yet but I'm wondering if anyone knows the downfalls if any of doing this. the entire things has an inductance of 20uH. I need some feedback. I'm probably going to try it regardless.
Registered Member #687
Joined: Mon May 07 2007, 02:21AM
Location:
Posts: 14
I seem to remember Popular Electronics did an article sometime ago about a square primary TC. I don't remember anything particular about increase/decrease in performance. This attached link claims it was at least derived from that article: http://www.uoguelph.ca/~antoon/circ/hv/sq-tesla/sq-tesla.html
Registered Member #146
Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
The only true drawback i see is that it has lower coupling factor for some voltage stand-off. The best design from this perspective is a conical or maybe some other slope, but linear is pretty good.
Banned on 3/17/2009. Registered Member #487
Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
The pipe thing is easy except its a pain in the ass to space it evenly and harder to strip for taps. Not only that but I cant find the bag of little angle brackets I got to mount the pipes.
Banned on 3/17/2009. Registered Member #487
Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
Well so much for this idea. Ive exhausted this. I can't get it to stop arcing over and when I lower the coupling a little it stops but the sparks suffer big time.
I also made another primary that is 7 Inches wide with a 3.5 secondary and roughly 9 turns. I use stripped 10 gauge wire and 8 wooden supports and even when this is perfectly tuned and just barely not flashing over I still get sparks maybe half of what I could with my old primary wound around a pipe.
It's like I finally had the thing right but now I'm starting all over again. Problem is the old primary cant be tapped very easily.
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Square Primary
