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Registered Member #1517
Joined: Wed Jun 04 2008, 06:55AM
Location: Chico CA
Posts: 304
Ok So its coming down to it, and I'm realizing more and more, that inorder to properly make this coil, I should wind a secondary myself, not just because it makes the coil mine, but also because it will optimize my final output.
And it looks like it could be cheaper all things considered.
I am going for something within the 24-26 AWG range, for a 460W coil. NST: 15kV 30mA, cap is still settling on a final value, but currently I have 11.1nF as my primary value @ 27kV.
So, here are a couple of auctions, please help me understand which ones are the best in value:
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
Neither. Both are poor buys.
Its only 2000 feet for about $40.00. For 25 AWG thats only 2 lbs. ($20.00 per pound)
The following listing has 10 lbs (or 10000 feet) of 25 AWG for about $100.00 the much better buy, especially if plan on making more coils. ($10.00 pound - twice the wire for the money)
Registered Member #1083
Joined: Mon Oct 29 2007, 06:16PM
Location: Upland, California
Posts: 256
Yes. I searched for literally months for the cheapest source of magnet wire for my secondary, and I found parawire to be the cheapest, most convenient source. Sure other places were cheaper, but you can't buy the wire in small reels. The minimum is like 10 pound spools from the manufacturer.
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Just a word of advice on the capacitor bank.. a little more that 27kv would be better. The working voltage has to be AT LEAST 2 times more than the power supply if it is ac because the capacitors are rated for dc. Then you want a safety margin of some kv above the rating.
So a good rating for you would be about 40kv i guess, or maybe just 35kv.
Also, your capacitor bank should be not much more than 7.5nf for optimum performance.
Registered Member #1517
Joined: Wed Jun 04 2008, 06:55AM
Location: Chico CA
Posts: 304
gotcha. Arc, I recall in one of your previous posts that I should do a single string of the cornell dubillier caps x 20 (.15uF 2000v), that should come out to about 7.5nF 40kV?
I was on the IRC room the other day, and someone else was telling me to not do 7.5nF, but instead 11.1nF... I dont understand where those differences come from... He also said that if I did 7.5nF it would fry my transformer... :/
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About to bid on this wire!
