Small DC Tesla Coil 1

[alumno409]

stop sucking this fucking tesla coil

[thewinermaker]

he talks with his mouth shut . hahaha

[TheEvilCommenter]

Zap that freaking cricket with your tesla coil

[SpeedDemon46]

Very, very cool stuff.

[MorbidAngelification]

wow man, you would make Tesla himself proud.

[dionysus2008]

hey could i use an ignition coil as the charging choke instead of rewinding a transformer core like u did? its build similar to ur choke with insulation inbetween each layer plus mineral oil. could that work?

[DerOrk]

Is it possible to abuse a Coil for zapping stingy Insects?

[TheNuclearWatermelon]

NICE!

[gizmoguyar]

Am I correct in saying that by changing the resistance of the filter choke, one could change the interrupt rate of the tesla coil? It seems like there'd be a way to play music, like with a solid state tesla coil?

Also, it then seems like (by slowing the interrupt rate) one could use a smaller power supply that would take longer to charge the capacitor and therefore produce longer sparks with less power?

any thoughts?

[zker666]

You've been hit with plasma a few times, haven't you?

[Tarzbloke]

You know Roger, have the BEST unintentional sound effects in your videos!

With your large tesla coil video, you had the "mad scientist" thunder cued in at just the right times.

Now a little cricket to add to the eerieness, love your videos mate!

[igotapochahontas]

at the risk of sounding like a complete ignoramus, how did u get a transformer to work on dc? i thought electricity had to alternate to transfer power to the secondary.

[anon32016]

Wich one? The resonant air-cored one (the actual tesla coil) or the Microwave oven transformers in the feeding circuit?

The current is rectified to DC after passing the both microwave oven transformers, naturally.

When passing through the primary coil in the tesla circuit it is pulsed via the spark gap to produce large and rapidly quenching voltage spikes. Since there is great alternation in the voltage, it can as well be considered AC after the spark gap.

[igotapochahontas]

hey thanx 4 the shimfo! thats all i needed to know, im still trying to comprehend all the technical differences of ac/dc. that actually answered my question, thanx again

[Milner62]

think of a automotive igniton coil its same basic principle as a tesla coil. You have primary windings in the coil that is provided voltage to create a magnetic field then you have either breaker point or electronic where the circuit is broken when that happens the collapsing magnetic field causes voltage to be formed in the iron core and create a spark ranging between 40,000 Volts to 80,000 Volts depending on the ignition system. Car system is a 12 Volt DC electrical system.

[triggerhappy77707]

Not really, a tesla coil is made to operate at resonance. Ignition coil frequency always veries with the revolutions of the engine. Also, if voltage is built in the iron core, you will have alot of loss as eddy currents. The core simply becomes magnetized, when the primary voltage falls to zero, the field collapses which is the coupled into the secondary, and a some back into the primary. If you have a 6 cylinder engine, the iggy fires 300 times at 3000 RPM. 8 cyl, 400 times a second.

[Milner62]

I said same basic principle I didntsay a ignition coil and the tesla coil are the same. You basically said what I said just in more technical terms which I avoided so more people could understand. I said the collapsing field causes voltage to form in the iron core and spark to the plug. The voltage of the spark is dependent on how the coil is wound.

[triggerhappy77707]

But that is not true :D. Tesla coils are independent of secondary turns. The ratio makes no difference. It is all dependent on resonant rise. Why do you think a out of tune tesla coil produces no spark? The resonant rise requires the resonator and primary to both be running at the resonant frequency. Ignition coils run at many different freq's. You do not have to run any where near the resonant frequency of the core or anything, and you still get high votlage out. I have had 1 inch sparks with

[triggerhappy77707]

a 40 turn secondary. I could have had longer if the resonant frequency was lowered with a topload. I know this from experimentation. My 300 something turn secondary with a resonant frequency of around 1.4mhz, lowered to around 600khz with topload, got a 9 inch spark after tuning, and the secondary was only 6 inches. This was a vacuum tube tesla coil, but this does not matter. It is all the same principal. Oh,and the primary was about 25 turns, so if the ratio mattered, I would have a small spark

[Milner62]

Hate to say this but your getting ahead of yourself. I am talking about a ignition coi when I said that so you dont have to go all technical on how a tesla coil doesnt have this or that. I was saying the spark voltage is dependent on the turns. Thats the only way on a coil how to get high voltage out of the secondary circuit while saturating the primary circuit with low voltage.

[triggerhappy77707]

Thats what i am saying though, the voltage output is independent on the turns ratio. Not ratio that matters, resonant rise. Just to reassure you, i am not trying to be mean :P. I am simply trying to present my thoughts. Need no enemy's :P

[Milner62]

I know your not I am just saying theres some confusion going on. I am just saying a ignition coil and this are simmilar though because lets face it both gives off a spark and they both have windings regardless if they create the spark the same way or not is all i am saying. I fully know a tesla coil is way different but their technically using the same principle just getting the spark in differentways. Sort of like breaker points to charge and discharge the ignition coil down to magnetic.

[triggerhappy77707]

Works for me :D.

[masermaker97]

if u used ac power and then rectified it it would work in a transformer... I think

[triggerhappy77707]

No matter if you use AC or DC input, the secondary will always be oscillating. Think about solid state. I guess the oscillations would be called ringdown. Humz. Once the spark gap fires, oscillations continue through the spark gap for the few ms (i guess it would be in the ms range?) between the tank capacitor and the primary, of course still coupled into the secondary. Goes to show how little i know XD

[radudman]

it sounds like you just sped up the video. lol. but i know dc coils can get up very high intervals.

[13NicktheDrummer13]

Nice Vid Roger!

Anyone else hear the cricket that cricket was very annoying

[tylerturnbull1]

@13NicktheDrummer13 I did



[Tab54o]

Whoa are you using glass mike caps int that coil?

[sororyzbl]

OMG I'm from chillicothe!

[codemsan]

squealy :)

[tizenhatutca]

very good sparks.

[BoHPriest]

Awesome :D keep up the good work :)

[triggerhappy77707]

hello roger.i have made a new tesla coil thanks to your knowledge..i get a 2 inch spark with 2kv and i have 10kv on the way so im hoping that one day i can get the mot's and the resistors and use a schematic similar to yours.thanks again roger!

[teslasintern]

Good job Roger,

I'd be interested in knowing the difference in the AC power draw between the DC and NST coil setups. I'd assume that the DC draws more current from the wall (because the brighter sparks). Keep posting videos.

[KrimReefa]

COol.

By doing this you will save money on your power bill ? and the sparks coming off will not effect humans ?

[slimsdizz]

amazing stuff I would hate to see your power bill. very impressive work I like the fact that saftey always comes first in your videos and you explain things very well in great detail.

[zachtankersley]

Although I have quite a bit of experience, and have even built my own Van De Graaff generator, I'm still only in high school and these things are extremely complicated and hard to understand, at least in all other descriptions and diagrams. These videos have helped me a lot in understanding and learning, so..... PLEASE DON'T STOP MAKING THESE VIDEOS! I don't expect it but any help on building mine would be greatly appreciated.

[cantonboy77]

I also made a Van de Graaf generator in middle school and high school. I took a state science competition with it in 8th grade. Any questions, feel free to ask. :-)

[777cc777]

Thank you for giving us all the opportunity to see this. Your equipment is clearly very well crafted. the important HV safety note at the start is also very commendable. Thanks again for clear explanations and great posting!

[Chiperilla]

hey you really now wwhat you're talking about. where did you learn all of this knowledge and how long did it take to craft all the mounts and stands?

[Thopter]

My question is not the electrical schematics but the beautiful hardware. Fabricating even the bases of those machines is not easy and getting those beautiful coils wound....where and how did you do all that?

[huddassc]

damn that cricket!

[OrganicDrew]

I am wondering If you could show us how to make a simple oscilloscope?

[ghosttroop]

Great work RogerInOhio! Detailed; ingenious; impressive. Thank you kindly for sharing your work. Not only are you a genius but you're a legend too.

[jdsilver86]

you tryin to get in this guys pants?

[triggerhappy77707]

thx dark tempo....though i am actually very experienced in hv(though i am only 14)but could you try to get me a good schematic for the hartley oscillator?

viper77707

@

hotmail

.

com

[triggerhappy77707]

well i have no got a small 1 or 2 ma 9000volt (estimated)with a large bowl cover with aluminum tape and a 6inch by about 8 inch jar in parallel for the tank cap and i can get a 1 inch spark

[elmolives]

nice, now that is a BIG resistor!

[DarkTemp0]

triggerhappy77707 why don't you try a simple hartley oscilator and a tv flyback transformer ? it worked for me and it did it very good, for simple schematichs google for "single transistor solid state tesla coil" you will fin two easy to build circuits, GOOD LUCK !!!

[electronicevilgenius]

neat

[zlatan8008]

Ecellent presentation, I would love to see a television set powered by the coil, hope you could try it for us. Once again excellent.

[tufnaman]

dear roger im making tesla coil my grand grand father was frome teslas borne village Smiljan and i live in roatia you are good and i like your work keep it up a hav a numeros tipes of tesla cils and i do the research of the tesla ideas but please sometimes i must say you are strange hehehehe :D i tell you this like a friend :D bye

[triggerhappy77707]

hello Roger. i love all the stuff you do..you have really inspired me to keep doing high voltage research and projects.anyway,would you happen to have a good way for a poor 14-year-old to get a high voltage power source?i have been testing my tesla coils on 600volts ....also i would like if you could give me a schematic for a multiplying circuit for an MOT including cap and diode specs.your biggest fan,Matthew Abshier..

[newtonianbarf]

ebay, or a transformer shop ( pole pigs) I would recomend you get a neon sign transformer from ebay first because they're relatively safe and cheap. they're also already inductively ballaced, unlike most other xfrmrs. goo luck. ( how the hell are you doing tesla coil stuff with 600 volts? Solid state?)

[Solidus1Syndicate]

Nice video ;)

I'm going to make one with a rectified flyback transformer of about12-15kV.

[Ettral]

Man, youre videos are some of the coolest Ive ever seen, Im glad I subscribed. I learned alot about electricity. Youre really cool! Keep up the good work!

[Vorkagen]

...Use it to fry that damn cricket.

[fubar247]

Very informative....that cricket during some of the presentation is relentless, lol

[bendavisjunior3]

Roger You are hardcore awesome, that's probably the nicest baby tesla coil ever! I wish I could see it in real life!

Ben

[JayMaxTay]

Very nicely presented video

[howtoruletheworld]

I think we now know who caused the Northeast Blackout of 2003.. Great informative video.

[drdapoo]

Nice job, great presentation.

[tckronos]

yet again breath taking

[FreshKesh]

dare you to stick your tongue in it.

[buttlicked]

Again, a very nice, informative presentation ... impressive to see some serious hardware doing something cool!

[Emir1025]

DC Seems unstable.

[tarnin]

Ok, this is just about the coolest thing ive seen in small tesla coils.

[bauerb2]

i got almost the same results (just a little less) using a halfwave rectified flyback transformer.

anyways, 2 mots to that little thing??? lol nice one keep it up

[collegeboy02]

dude, you rock

[leeoe]

sweet! now you have to make a big one that does that.