this is a very cheap mini tesla coil made of stuff i had lying around.
how it works: "Electricity flows into C1 until a high voltage is seen across G1. When this voltage is high enough, a spark jumps across the gap and allows C1 to discharge into L1 and L2. The voltage "bounces" back and forth at an extremely high rate. When the rate of discharge between C1 and L1 matches the rate of C1 and L2, the two circuits are said to be "in resonance" and the voltage goes up through the roof."

DANGER HIGH VOLTAGE: although the amps are relatively "low" this can still be dangerous. always turn it off before making adjustments unless you are experienced. I TAKE NO RESPONSIBILITY IF YOU GET HURT!

Step 1: you will need...

a 9.5in x .9in (od) PVC pipe 
15 high voltage capacitors 
matching round head bolts
a bottle
2 pens
electrical tape
speaker wire
about 300ft of 32 awg mag wire
18 awg solid core hook up wire

hot glue gun
different drill bits 

power source:
flyback driver or
instead of a flyback or NST, would i be able to use a marx generator power supply to run this? <br>http://www.instructables.com/id/High-Voltage-Power-Supply-For-Marx-Generator/
<p>A Marx Generator is too slow. It takes time to generate the HVDC (&lt;1Hz) and the TCoil operates very fast (1kHz - 1GHz). This incompatibility can be overcome but it would require some work with very little reward. Even a giant Marx would not generate appreciable amperage for the TCoil to transform. </p>
i dont see why not, all you really need is a continuous AC power supply
I am trying to make a handheld (sort of) tesla coil, and i am trying to run it off of a drill battery(18v 1.5A), so I want to get some sort of high voltage supply to run off of the battery which is dc not ac. <br> <br>is there any sort of voltage multiplier that runs off of dc instead of ac? <br> <br>would a MOT work with a flyback driver?
this is my plan
i dont know, you need much more DC power to get the same results as AC power
what if i used a flyback with an inverter circuit? <br>and i dont understand one thing, does a tesla coil run off ac or dc?
i think you could do that<br>it is possible to run DC tesla coils but i used a 9.5kV DC power supply and i didnt work at all but with a 2kV ac power supply i got the results in the picture
could i use a MOT to power this? <br> <br>and would 2-3 NSTs in series make bigger sparks?
yes you probably could use a MOT<br>i you put them in series you will probably overload the NST and if you dont depending on the combined voltage it may be to powerful for the coil, 6-15kV is the most common voltages for tesla coils, one should be good.
my biggest problem right now is trying to find an inverter circuit(a simple one), to drive a transformer to give me my high voltage. <br> <br>do you know of any such circuit?
there is a circuit that consist of a relay that rapidly turns off and one which can drive a transformer, or you could use AC, here is a schematic....
do know how to turn it to ac instead of pulsed dc?
no i do not, ive been needing an inverter circuit but i cant seem to find any schematics for one, only AC to DC.
i keep finding circuits for inverters, but they are 12 volt car batteries to 120v ac <br>i just want 12v dc to 12v ac
hmmm, get a 12V wall wart with the current you desire and take out the rectifier and put it back together (if it has one)
i don't understand.
most wall warts have a 12V DC output, if you open it up theres a transformer and usually a bridge rectifier, if you remove the rectifier you will have AC output.
but my whole point is to run it off a battery, not mains power
The only thing i can help you with it pulsed DC, i dont know how to make DC into AC but i would like to.
i'm no expert in making transformers, but if i were to make a small 1:1 transformer, with 1 coil with 22gauge wire, and the other coil with 10gauge wire, would i get higher current coming out the 10gauge side while running a flyback transformer through the 22gauge side?
the thicker the wire the higher the current. You have probably heard lower voltage higher current and vice versa, well that can me modified by using thicker or smaller wire on the pri/sec coils of a transformer. im not sure if a flyback will work because the have low current output. (most of the time)
i'll try it out, and if it works, then great!
Hey what about a 555 timer oscillator? I was working on something and was using one of those and thought that it just mite work.
what about this: <div class="media_embed"> <object height="385" width="480"><param name="movie" value="http://www.youtube.com/v/QxHSUDeaHls?fs=1&amp;hl=en_US"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed allowfullscreen="true" allowscriptaccess="always" height="385" src="http://www.youtube.com/v/QxHSUDeaHls?fs=1&hl=en_US" type="application/x-shockwave-flash" width="480"></embed></object></div>
does a flyback driver turn your power to ac or pulsed dc?
depends on your input, it will always be the same just different volts, current, ect.
there is a relay circuit thats turns the relay off and on super fast to make pulsed DC, or you could use AC, here is the schematic....
my church asked me to do a display for halloween, and i was going to do a jacobs ladder, but i wanted a longer arc than the 1 inch that i have from a 4500v nst. <br>so i was wondering if i had one nst running to the input of another nst, if that would increase my power, or if i just connected one output of the first nst to one output of the other, then short out the other 2 leads with the jacobs ladder, if that would increase my spark length.
if you put the NSTs in parallel you will increase the current, this will mean the arc will be hotter, by this you will be able to stretch the arc further.
is there a way to make the arc longer, but keep the same current? <br> <br>and could i run the output of the nst to a mot?
i dont not have an answer to ether of those questions, do you have any MOT's by the way?
not yet. <br>i wasn't going to get one until i knew for sure if i could use it with my nst. <br>i was gonna get it from a garage sale or something
yeah me to but i cant find a microwave anywhere!
where do you live?
North Carolina, a few mile south of Raleigh.
im out in the sticks in oklahoma
oh, ok, last saturday i was up near tthe mountains and i found an old microwave in a very very old house, as well as a bunch of other stuff but yeah i got a microwave!
DO NOT MESS WITH MOTS unless you are 100% sure of what you are dealing with! YOU WILL KILL YOURSELF!
trust me I got this!
ALOT of garage sales around here <br>about 20 a week advertised in the paper about 10 more not in the paper
but i would need a thicker diameter secondary. <br> <br>what i have now is about 1&quot; diameter for the secondary
anything about the size of a water bottle should work
another question, does the primary work better with a flat coil or an angled, cone shaped coil?
for small coils like this you would a 90* coil for medium people sometimes use conical coils and for large you would use a flat coil because you dont want the arcs to strike it
i believe i could get long sparks with a flyback(possibly ZVS) running to both a voltage transformer and a current transformer, then converting to ac.
90* coils and most commonly used for tesla coils this small, and i used a 1&quot; diameter secondary and you can try
i plan on making an instructable when i am finished
Good news! Someone has done that! And they posted an instructable! Hope <a href="http://www.instructables.com/id/Quick-and-Dirty-Hand-Held-quotTesla-Coilquot/">this</a> helps.
which means that i need a real high voltage power supply

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