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Registered Member #1902
Joined: Fri Jan 02 2009, 07:59PM
Location: Lancaster, NY
Posts: 75
Hi, I'm new on the tesla coil scene, i've been researching for a bout a year and a half now. I have a NST rated at 15kv @ 60ma, so its roughly 900watt supply. I wanted help matching the supply to secondary coil dimensions, wire gauge, height, diameter. I've looked at deep fried neon. But i am unhappy if my coil is 6inch across and only 24inch tall. Also i was going to use 28awg wire is this too thin of i want to up the height of my coil to say 26-30inch? I've estimated if my coil is 30inch and I use 28awg wire there is 2373 turns on secondary!! Is that too many turns?
Registered Member #1517
Joined: Wed Jun 04 2008, 06:55AM
Location: Chico CA
Posts: 304
You should use 22-24awg
The secondary dimensions are more dependent on your desired resonant frequency, you want a secondary that will be able to provide a res freq within your primary's range.
Also, think about asthetics, take plenty of time to think about what you want... what sort of dimensions were you thinking of?
Registered Member #1902
Joined: Fri Jan 02 2009, 07:59PM
Location: Lancaster, NY
Posts: 75
If i can find a 6" coil form, i am definitely going to use it. I calculated if i use 2000' of 24awg wire, i will get a little over 24 inches on a 6" form. I don't know i seem to have a obese coil fetish. =D I may use it for a sstc later so its better that its fat. -Corey
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
Aspect ratios of secondaries for SGTC are usually about 5:1 for best performance, although this can vary quite widely.
Visit my webpage at and go to AMATEUR RESOURCE and download my PDF on how i design my Tesla coils. This will give you some insight in how my secondaries are designed etc...
Registered Member #135
Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
I would go for 24AWG and aspect ratios No greater then 5:1, 4:1 gives you better inductance/unit volume. I played with 6:1 just to see what the result would be and its performance was pretty poor, not enough inductance at the base where it couples to the primary.
Registered Member #1902
Joined: Fri Jan 02 2009, 07:59PM
Location: Lancaster, NY
Posts: 75
Ok i bought 2400ft of 24awg wire should be here in a few days. Now i still have to find a 6" form anyone have any ideas where i can get such a mammoth tube? The 2400ft of wire will wind ~1500 turns, and be roughly 30in of coil on the 6" form, any objections to this design? -Corey
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Secondary Coil Match
