It's not really proven to filter the frequency we create with our coils, but I'd like to think it's helping... There is one obvious design flaw. I have the filter located right under the coil. It should be kept as far away, and as close to the wall outlet as possible. I ended up making my own control panel with power switch, push switch, light indicators, and filter all in one. I use that to control my new coil.
hello..not trying to bum you out but you have very off tuning....i have a 700 turn 2 inch but 11 inch coil...i use 2kv and a few milliamps and i get 2 inch spark....but you have a VERY nice coil...just need a bit of tuning and like homedistiller said you need a larger capacitor for resonant charging.i must have great tuning for my current setup...but with a topload i get NO breakout....but that is because i have a bugzapper runing it!
This video was my first test run of the coil. I have more videos of later progress on my YouTube homepage. I disassembled my old setup you see here, and haven't worked on the setup in a good amount of time. New setup will have a portable base, which I have already made, and a 1/4" copper coil primary that is not yet complete.
Yes, any amount of electrical charge also developes an electro-magnetic field. The field created by a Tesla Coil is, as my guess, most likely very large, but very weak for a coil my size that is tuned for maximum length electrical streamers, and not power transfer.
yeah but you have a cap with a SMALLER value than resonate charging... i am running my coil with resonate charging and have had no problems... and i only have a safety gap and 2 RF chokes
How do you figure smaller than resonant? The cap value tapped at 11 series caps is 13.64nf, LTR static for a 9kv 30ma NST is 12.4nf, and resonant is 8.8nf. To be smaller than resonant the capacitance would have to be below 8.8nf, correct? So, I am really above the optimum LTR Static value, but it is still LTR.
you need 2 more caps to get resonate charging with you NST... plus your wires especially you primary are WAY to thin.... the top load needs to be just about the top winding of the secondary to stop corona...
Resonant capacitor value likes to kill fragile neon sign transformers easily. It's best to larger than resonant capacitance for a NST, along with a filter, such as the Terry filter I use. Just a safety gap alone can be enough to protect the NST usually, but I think the filters probably extend their life.
Hi newtonain, I did use TeslaMap5 to calculate a lot of the parameters, but this program lacks coupling support, and topload height support. I plan on making a smaller coil while I rebuild this larger coil. The new larger coil setup will have a 15kv @ 30ma fraceformer unpotted and shunting removed to about 50ma. Possible I will unpot the other, also a 15kv 30ma fraceformer, remove the same amount of shunting, and parallel the two for 100ma at 15kv.
You could also decrease the secondaary capacitance to decrease resonance frequency. If you moved the secondary i part down and capacitance one part up, you should be able to compensate for lost power due to shotre secondary. you should build a small one, that would be cwel! like, 6 inches tall!
I'm about to cut the length of both sides of the PVC secondary. I'm sure it could stand higher coupling, and I need to lower the topload to prevent a lot of the corona forming on top windings. I think I will make a new primary coil. Current one is tapped at last turn, 12, and still not close enough to resonate with secondary and topload.
have you considered increasing the space for your spark gap???
inucola 6 months ago
cool, you got one of those NST filters. I saw those filter kits on ebay. They seem pretty cool
juniortore 2 years ago
It's not really proven to filter the frequency we create with our coils, but I'd like to think it's helping... There is one obvious design flaw. I have the filter located right under the coil. It should be kept as far away, and as close to the wall outlet as possible. I ended up making my own control panel with power switch, push switch, light indicators, and filter all in one. I use that to control my new coil.
gt4awd 2 years ago
I like how I said, "I use this surge protector, it's a very good surge protector..." LOL!
gt4awd 2 years ago
hello..not trying to bum you out but you have very off tuning....i have a 700 turn 2 inch but 11 inch coil...i use 2kv and a few milliamps and i get 2 inch spark....but you have a VERY nice coil...just need a bit of tuning and like homedistiller said you need a larger capacitor for resonant charging.i must have great tuning for my current setup...but with a topload i get NO breakout....but that is because i have a bugzapper runing it!
triggerhappy77707 4 years ago
This video was my first test run of the coil. I have more videos of later progress on my YouTube homepage. I disassembled my old setup you see here, and haven't worked on the setup in a good amount of time. New setup will have a portable base, which I have already made, and a 1/4" copper coil primary that is not yet complete.
gt4awd 4 years ago
do Tesla coils give of magnetic fields
twirlywirly55 4 years ago
Yes, any amount of electrical charge also developes an electro-magnetic field. The field created by a Tesla Coil is, as my guess, most likely very large, but very weak for a coil my size that is tuned for maximum length electrical streamers, and not power transfer.
gt4awd 4 years ago
you should see me dads 250,000 volt tesla coil look up on my contacts tommyg
Durken316 3 years ago
yeah but you have a cap with a SMALLER value than resonate charging... i am running my coil with resonate charging and have had no problems... and i only have a safety gap and 2 RF chokes
HomeDistiller 4 years ago
How do you figure smaller than resonant? The cap value tapped at 11 series caps is 13.64nf, LTR static for a 9kv 30ma NST is 12.4nf, and resonant is 8.8nf. To be smaller than resonant the capacitance would have to be below 8.8nf, correct? So, I am really above the optimum LTR Static value, but it is still LTR.
gt4awd 4 years ago
What is your coils specifications? Input power in voltage, and amperage on the high voltage side, secondary dimensions, max spark length, etc?
gt4awd 4 years ago
you need 2 more caps to get resonate charging with you NST... plus your wires especially you primary are WAY to thin.... the top load needs to be just about the top winding of the secondary to stop corona...
HomeDistiller 4 years ago
Resonant capacitor value likes to kill fragile neon sign transformers easily. It's best to larger than resonant capacitance for a NST, along with a filter, such as the Terry filter I use. Just a safety gap alone can be enough to protect the NST usually, but I think the filters probably extend their life.
gt4awd 4 years ago
Hi newtonain, I did use TeslaMap5 to calculate a lot of the parameters, but this program lacks coupling support, and topload height support. I plan on making a smaller coil while I rebuild this larger coil. The new larger coil setup will have a 15kv @ 30ma fraceformer unpotted and shunting removed to about 50ma. Possible I will unpot the other, also a 15kv 30ma fraceformer, remove the same amount of shunting, and parallel the two for 100ma at 15kv.
gt4awd 4 years ago
You could also decrease the secondaary capacitance to decrease resonance frequency. If you moved the secondary i part down and capacitance one part up, you should be able to compensate for lost power due to shotre secondary. you should build a small one, that would be cwel! like, 6 inches tall!
newtonianbarf 4 years ago
didn't you use any equasions, they would make the job much easier.
newtonianbarf 4 years ago
I'm about to cut the length of both sides of the PVC secondary. I'm sure it could stand higher coupling, and I need to lower the topload to prevent a lot of the corona forming on top windings. I think I will make a new primary coil. Current one is tapped at last turn, 12, and still not close enough to resonate with secondary and topload.
gt4awd 5 years ago
give it some !!!
teslaspigeon 5 years ago