I really like the type of videos you make. idk they just feel right. no bullshit no calls to action no hyped up voice, just you and your project like old youtube
Excellent vid. Nicely crafted! Just starting out here, built a VTTC with 2 572B triodes. Works well, I think I'm hooked. But your small portable unit is remarkable. Also you present yourself clearly and intelligently, Thank you! Old and retired here, can't deal with too much theatrics and weirdness.
Nice coil! I made the same "insulated switch" discovery when I built my 833C VTTC. Whenever I would touch one of the toggle switches I would get shocked! I also thought initially that I had a bad grounding system but it was current being induced into my body by the electromagnetic field.
Very inspiring- If I still had all my workshop machinery, I would have a go at this. The demonstration was as good as it gets and well done for the additional safety warnings about the dangers of the high frequency affecting the surrounding metalwork.
This perfectly shows why I stopped my last circuit design. I did design simple circuits many years ago, really trivial stuff, but even there you start with an simple idea, and then fix the issues ... and simple becomes complex fast. Since I lack experience I can not judge if my finished solution is actually ok or an abomination that still works somehow. So just decided to delegate that when I actually need a circuit. For what I do, i.e. abstract systems design, I just need to know that technical solutions exist.
I think this video revived my dream of small tesla coil build!! I didnt think such simple driver could work with just 12 volt input. I have exactly same problem as on video start - bad coil feedback -> lame arcs.
So built up this circuit and it works flawlessly good Job! getting about 2.5 inch off the breakout at 24v nothing getting warm other than the snubber resistor which is doing its job!, time to make he voltage cutoff im debating to use a lm358 instead as this is all ive got in my parts bin, cant wait to get it in a box and portable, thanks for showing how its done ;-)
Videos like this make me nervous, but not for the reason one may think. I've killed more than a handful of devices (bench PSUs, function generators, etc.) from running/testing my tesla coils next to them. So seeing you run it next to your nice scope is frightening. I don't know if my problem is cheap electronics that I had or what... :( Great build and video as always!
I know what you mean. I was testing a low power emp generator once (maximum range for disrupting unshielded devices around 5m). It managed to kill 2 laptops; they died shortly after the testing. First time I thought it was a coincidence, so ended up with two destroyed laptops.
@@threeMetreJim Unfortunately this is the reason I stopped experimenting with Tesla coils. I have very little free space that would get me away from my/others' electronics. I built an awesome SSTC that ran off mains a few years ago, but after switching it on once or twice I realized I couldn't do that again :(
Die Wirkung auf in der Nähe stehende elektronische Geräte ist in der Regel tödlich. Wie machen das die Leute nur bei einer 2,5 Mefer hohen Teslaspule? Soviel Platz habe ich nicht hinter dem Haus, und die Regressforderungen der umliegenden Nachbarn werden auch nicht ohne sein. 😜😜😜
Love your videos. I remember having a plasma globe when I was 10 and quickly learned a penny could be balanced on top and cause very similar shocks/burns depicted in your video! Not to the same intensity but nearly identical burns
(Edit: you earned a subscriber!) I love this video. It is so honest and informative, i'll use this video as a guide to make a top-notch tutorials in my own future videos. Thank you for sharing your amazing information style and presentation skills.
Did you ever keep working on or come up with some kind of kit or tutorial plan for that super tiny TC you had? The one in the video where you're making a wire wound topload.
people are always telling me "You MUST put transistors in Darlington Config when using multiple in parallel" and I'm wondering why I see people that seem to know their stuff just putting them in normal parallel and don't seem to have any issues... Are there certain circumstances when its ideal and times when not an issue or times when u must or abs can NOT... nice video and great circuit, presentation, appearance very cool and interesting watch!
Darlington connection has nothing to do directly with paralleling transistors, it only may help to provide BJT base current. And this way it's not useful at all with MOSFETs in place of BJTs (see that NPN-PNP pair gate driver in the video).
The larger top load should improve performance, so strange that it reduced it in your case. It's possible that the additional circuit elements like the snubber circuit are just no longer well tuned to the new frequency caused by the larger capacitance.
A regular CRT high voltage generator does this same exact thing. We called it the high voltage section. It operated at 15,734.26 Hz. It’s a standard high voltage transformer. We never, one time, called them a tesla coil. High current input on the low impedance side - high voltage output on the high impedance output. 25 inch TV’s had 35Kv on their Anodes. Now for the haters and defenders.
You mean a flyback? No tesla coil runs at 15khz, they usually run in the megahertz range, if you are talking about the flyback transformer it is a completely different thing with different purposes too.
I gave myself a burn like that with a MIG welder one day,. I was tacking something, and instead of grabbing a tool, just held it in place. I've done it thousands of times before, but this time, evcerything was just right for the welding current to try and ground through the end of my finger. Hurt like hell at the time, but was worse three days after, and looked just like yours. Could the case be plastic to hrevent accidental burns, or is it being metal a required part of the device?
3:29 The overvoltage diode, when active, will sink the current to Vcc. Won't that damage whatever power supply is assigned to Vcc? Because the power supply will have negative current flowing through it.
I would have used a plastic box, and plastic bodied switches, to prevent accidental discharges through the hands, and the resulting, very painful, RF burns which you experienced. You're also generating some low-level X-Rays as well as UV light..
An amazing device & great workmanship. A few comments/questions: Use a pvc and/or plastic chassis instead of metal? Immerse any circuit boards in transformer or mineral oil for cooling & the prevention of arcing. Make the primary/secondary coils "plug-in type" so that you can experiment with different lengths & diameters. Can the primary/secondary coils be immersed in oil with just the screw tip exposed?
I use a metal case to serve as a ground plane for the circuit and shield the electronics inside from the huge amount of electrical noise caused by the coil. The oil thing would definitely work, just more hassle and potential to make a big mess, so usually i avoid it
Nice! Wondered if you ever fiddled with electrostatic hold down plate, like those found on old flatbed plotters? I‘m pretty sure you would come up with a DIY solution
I'm trying to build the circuit, but along the way, I have some questions. If someone could answer a few, it would help me a lot: --Is the snubber filter resistor 2 ohms or 1 ohm? Because in the last version of the schematic, 1 ohm appears. --Does the value of the capacitors connected at the beginning have to be exactly 3300 uF? Because I have 3 similar ones but they are 2200 uF, although I don't know if it would work because I'm not very familiar with the purpose of placing those capacitors. --To find the ideal value for the snubber filter capacitor, is it more appropriate to start testing values above 54 nF or below? --What awg is the primary winding?
1. Snubber resistor's value isn't critical, but keep in mind that lower value resistors will heat up significantly more. You can't use too high value resistors though, because then snubber wouldn't serve it's purpose. I think he used 2 ohms. 2. No, these capacitors are only to provide higher current when circuit needs it, so I think that 3x 2200uF will work just fine 3. In my opinion it's better to start with higher value capacitor and then gradually going down. You can also calculate it's value(he explained how to do it in his video about ignition coil drivers)
I'm really interested in the continuous operation! What supply voltages can it keep up with? See I need a high voltage, high frequency source for some... vacuum fun. Particle physics stuff, need to get these millennial particles excited!
In the triple parallel FET circuit diagrams... why are gates and drains showing as connected together? Is there some aspect of FET operation that I've failed to understand? The points where the parallel gate connections cross over the parallel drains are all showing as connected, so this must have been deliberate as these drawing programs don't create connections without the designer designating such - again as far as I know. What am I missing please?
Could you do a variation of the driver using exposed vacuum tubes I know it will be less efficient but I'm going for looks over efficiency I want to build a steam punk style one
Does anyone have an updated circuit diagram for this project? The configuration of the FET's and 2n3906 looks wrong. I've wasted FET's and BJT's and diodes.
Trying to repeat. There is bunch of errors in demonstrated circuit cheme. First - gates of mosfets short connected to drain. Second - pnp is up side down, I don't know others, but i can't manage it to work with the listed components. No oscillations.
Thanks for pointing this out, I don't know much, but this sticks out like a sore thumb. I hate it when the schematics are wrong. People spend a lot of time and effort trying to replicate circuits like this that are just plain wrong. I often wonder if it's intentional.
I have w doubt you can touch the Spark even when the voltage is that High is because the current is low enough right?....but when touching it you just reached out to it or have to ware rubber shoes and all
Hi, a couple of comments on your otherwise great video.The Slayer exciter circuit work with both a BJT and MOSFET alike, the big difference is the BJT can sink significant current via the Base Emitter junction effectively providing a return path for the secondary coil current which is not insignificant ( depending on the transistor it can pass up to ⅓ the Collector Emitter current) negating the need for a Base to ground secondary return resistor. This is not not the case with a MOSFET which has a high impedance Gate to Source, so you have to provide somewhere for the secondary current to go, this whole circuit could be much simplified by using a suitably rated 12V Zener Gate to Source across say a 100 Ohm and a 470 Ohm pull up to supply, you mention in your video 3.40 “ Buffering the current to the Gate”? This makes no sense as there is no gate current to speak of.
I know this is an old video but the mosfet gates seem to be connected to The Drain's at 5:27 in the video?? I am about to build this and have a play ;-)
I would love to safely play with one of these medium strength tesla coils, but as I live in on the 4th floor of a 6 floor apartment building, I am wondering about how much and what type of EM interference noise It would possibly be generating to outside my unit into my neighbours dwellings. I woudn't want to cause much in the way of this, as I don't wish to make them upset with my running it in here. p.s: I would probably purchase an off the shelf already available one... any recommendations?
@@HyperspacePirate Thank you Hyperspace Pirate... ok, so that gives me more confidence to check into getting one... * I'd love to be able to make one like you've shown in other previous videos on a simple scaled down version of what's shown here, (very impressive, btw), but I'll purchase a small one first and start playing... and maybe build one later.
Increase the frequency until it loses its tendency to penetrate the body. Skin depth will decrease with increased frequency. Pretty sure Tesla was making people glow like this and even observed phenomena that corresponded to acupuncture points. Pretty sure at a high enough frequency he mentioned that the air in the room began to glow. Can dig for the article if you are interested.
Careful using screwdrivers around TCs. They build up a charge like a capacitor. Had one screwdriver discharge on me and my arm kicked so hard the screwdriver nearly stuck in the ceiling as it flew out of my hand.
I was holding the plastic handle. the metal tip, which was on the end a full tang rod, was stuck into the sparks was not grounded to me. Apparently I became one plate, as it were, and the metal rod running through the handle of the screwdriver was the other plate. The plastic handle was the dielectric.@@TantalumPolytope
@sojournerdelaterra6144 with that little surface it would discharge extremely fast and hold almost no charge, I'm pretty sure something different happened, maybe you didn't see an arc to the screwdriver but when you touched it it was receiving electron anyways (like corona or something)
@@ElPsyCongroo. I can only share what I observed. It wasn't a spark from the coil. I can take sparking coil voltage all day long on my hands. Ultra-high voltages travel over the skin, not inside the body. This, however was a deep muscle kick which is indicative of an amperage release. Thus, I could only conclude it was a capacitive discharge of something between me and the coil and that was the screwdriver.
This project shows a lot of electronic analog circuit complications very sophisticated electronic circuitry here would be expensive and very time consuming construct someone who builds this should have a degree in electrical engineering for safety issues
i have a question if you don't mind do the voltage rating of the mur120 diodes have to match exactly with the mosfet? planning on trying this out with irf460 so can i use mur160? also can i use 100 watts for the 2 ohm snubber resistor?
![BOWKYLION - วิงวอน (ex-change) [Official MV]](http://i.ytimg.com/vi/cLdnZWDaO-w/mqdefault.jpg)
I really like the type of videos you make. idk they just feel right. no bullshit no calls to action no hyped up voice, just you and your project like old youtube
And slayer exciter
Excellent vid. Nicely crafted! Just starting out here, built a VTTC with 2 572B triodes. Works well, I think I'm hooked. But your small portable unit is remarkable. Also you present yourself clearly and intelligently, Thank you! Old and retired here, can't deal with too much theatrics and weirdness.
One of the best explanations for the design and iteration process! And a pretty clean build too.
Nice coil! I made the same "insulated switch" discovery when I built my 833C VTTC. Whenever I would touch one of the toggle switches I would get shocked! I also thought initially that I had a bad grounding system but it was current being induced into my body by the electromagnetic field.
Very inspiring- If I still had all my workshop machinery, I would have a go at this. The demonstration was as good as it gets and well done for the additional safety warnings about the dangers of the high frequency affecting the surrounding metalwork.
This perfectly shows why I stopped my last circuit design. I did design simple circuits many years ago, really trivial stuff, but even there you start with an simple idea, and then fix the issues ... and simple becomes complex fast. Since I lack experience I can not judge if my finished solution is actually ok or an abomination that still works somehow. So just decided to delegate that when I actually need a circuit. For what I do, i.e. abstract systems design, I just need to know that technical solutions exist.
I think this video revived my dream of small tesla coil build!! I didnt think such simple driver could work with just 12 volt input.
I have exactly same problem as on video start - bad coil feedback -> lame arcs.
So built up this circuit and it works flawlessly good Job! getting about 2.5 inch off the breakout at 24v nothing getting warm other than the snubber resistor which is doing its job!, time to make he voltage cutoff im debating to use a lm358 instead as this is all ive got in my parts bin, cant wait to get it in a box and portable, thanks for showing how its done ;-)
Hello, by any chance can I contact you by email for assistance? I'm also trying to do the same...
Nice as always! Loved the development of the circuit and the Slayer Circuit animation.
Same here , you can also use relay for particular low voltage cutoff levels .
Fantastic project for the HV enthusiasts! Thanks for sharing.
I like that slayer mosfet exciter with BJT's
Great video. Highly appreciate it & love what you did. Where simplicity is, you are there. Keep it up.
That jar was the star of that show. Surprising that only an empty vacuum tube can do that
Videos like this make me nervous, but not for the reason one may think. I've killed more than a handful of devices (bench PSUs, function generators, etc.) from running/testing my tesla coils next to them. So seeing you run it next to your nice scope is frightening. I don't know if my problem is cheap electronics that I had or what... :(
Great build and video as always!
i saw his monitor flicker in the background when he turned it on, i wonder if its fried
I know what you mean. I was testing a low power emp generator once (maximum range for disrupting unshielded devices around 5m). It managed to kill 2 laptops; they died shortly after the testing. First time I thought it was a coincidence, so ended up with two destroyed laptops.
@@threeMetreJim Unfortunately this is the reason I stopped experimenting with Tesla coils. I have very little free space that would get me away from my/others' electronics.
I built an awesome SSTC that ran off mains a few years ago, but after switching it on once or twice I realized I couldn't do that again :(
Die Wirkung auf in der Nähe stehende elektronische Geräte ist in der Regel tödlich. Wie machen das die Leute nur bei einer 2,5 Mefer hohen Teslaspule? Soviel Platz habe ich nicht hinter dem Haus, und die Regressforderungen der umliegenden Nachbarn werden auch nicht ohne sein. 😜😜😜
Love your videos. I remember having a plasma globe when I was 10 and quickly learned a penny could be balanced on top and cause very similar shocks/burns depicted in your video! Not to the same intensity but nearly identical burns
5:30 you got drains and gates interconnected on your diagram :)
I will try your cicuit man thank you so much i've already burned a lot of transistor trying to make a descent slayer exiter ;)
Reign in Blood!!! Man i had trouble learning that riff as a kid. Sweet video.
(Edit: you earned a subscriber!)
I love this video. It is so honest and informative, i'll use this video as a guide to make a top-notch tutorials in my own future videos. Thank you for sharing your amazing information style and presentation skills.
Did you ever keep working on or come up with some kind of kit or tutorial plan for that super tiny TC you had? The one in the video where you're making a wire wound topload.
Thanks for the tutorial and great explanation in the details!
This will be my next hobby project! :)
You are great at explaining things!! Maybe try a dedicated mosfet gate drive IC to get losses down?
I find various sized metal spoons to be ideal for smoothing out metal tape.
people are always telling me "You MUST put transistors in Darlington Config when using multiple in parallel" and I'm wondering why I see people that seem to know their stuff just putting them in normal parallel and don't seem to have any issues... Are there certain circumstances when its ideal and times when not an issue or times when u must or abs can NOT... nice video and great circuit, presentation, appearance very cool and interesting watch!
Darlington connection has nothing to do directly with paralleling transistors, it only may help to provide BJT base current. And this way it's not useful at all with MOSFETs in place of BJTs (see that NPN-PNP pair gate driver in the video).
Nevermind. THIS will be a fun build
When he said “metal casing” I basically said “NOOOOO!!!”. What sort of electronics engineer’s go to high voltage project casing is conductive???
The larger top load should improve performance, so strange that it reduced it in your case. It's possible that the additional circuit elements like the snubber circuit are just no longer well tuned to the new frequency caused by the larger capacitance.
A regular CRT high voltage generator does this same exact thing. We called it the high voltage section.
It operated at 15,734.26 Hz.
It’s a standard high voltage transformer. We never, one time, called them a tesla coil.
High current input on the low impedance side - high voltage output on the high impedance output. 25 inch TV’s had 35Kv on their Anodes.
Now for the haters and defenders.
You mean a flyback? No tesla coil runs at 15khz, they usually run in the megahertz range, if you are talking about the flyback transformer it is a completely different thing with different purposes too.
I gave myself a burn like that with a MIG welder one day,. I was tacking something, and instead of grabbing a tool, just held it in place. I've done it thousands of times before, but this time, evcerything was just right for the welding current to try and ground through the end of my finger. Hurt like hell at the time, but was worse three days after, and looked just like yours. Could the case be plastic to hrevent accidental burns, or is it being metal a required part of the device?
Can't go wrong with a battery SSTC!
KSP VAB music is fucking perfect for this.
(I know it's not exactly the same, but it's close)
Master Nikola Tesla is proud about you, you are good teacher.....yes you have...👍🦁🇲🇽😀
What a creative name
3:29 The overvoltage diode, when active, will sink the current to Vcc. Won't that damage whatever power supply is assigned to Vcc? Because the power supply will have negative current flowing through it.
Gracia Sr. Pirate
I would have used a plastic box, and plastic bodied switches, to prevent accidental discharges through the hands, and the resulting, very painful, RF burns which you experienced.
You're also generating some low-level X-Rays as well as UV light..
An amazing device & great workmanship. A few comments/questions: Use a pvc and/or plastic chassis instead of metal? Immerse any circuit boards in transformer or mineral oil for cooling & the prevention of arcing. Make the primary/secondary coils "plug-in type" so that you can experiment with different lengths & diameters. Can the primary/secondary coils be immersed in oil with just the screw tip exposed?
I use a metal case to serve as a ground plane for the circuit and shield the electronics inside from the huge amount of electrical noise caused by the coil.
The oil thing would definitely work, just more hassle and potential to make a big mess, so usually i avoid it
@@HyperspacePirate how does changing the overall surface area of the ground alter the output?
@@HyperspacePirate Mineral oil gets on everything regardless of how you try to contain it.
@@HyperspacePirate what diameter had your wire?
Sharing is beautiful,,,,thank you😀
Wow modulating sixty hertz may also likely enable low frequency devices to run
Your circuit is awesome but I have a doubt....are the gate pins of the fets are connected to the drain? It is their in your schematic
Love your projects!
So cool! Nicely done
I could theoretically use a different 555 interrupter right??
super awosome ,,hi from Dominican republic
Great work
Thanks for sharing
Nice! Wondered if you ever fiddled with electrostatic hold down plate, like those found on old flatbed plotters? I‘m pretty sure you would come up with a DIY solution
Can you share stl file for this project and for the coil winder?
I love your channel so goddamn much
Thanks for the video!
Awesome stuff man
great work!
but the circuit at 5:30 seems wrong?
and what is the maximum input voltage this driver can handle?
The max he used was 30 volts, so I wouldn’t go much higher than that
Great work! Just for the record, what level of vacuum are you giving to the home-made plasma jar? Thanks for your so educative video 😊
Next thing to do is make a full bridge slayer exciter with no fet drivers. That would be something.
I'm trying to build the circuit, but along the way, I have some questions. If someone could answer a few, it would help me a lot:
--Is the snubber filter resistor 2 ohms or 1 ohm? Because in the last version of the schematic, 1 ohm appears.
--Does the value of the capacitors connected at the beginning have to be exactly 3300 uF? Because I have 3 similar ones but they are 2200 uF, although I don't know if it would work because I'm not very familiar with the purpose of placing those capacitors.
--To find the ideal value for the snubber filter capacitor, is it more appropriate to start testing values above 54 nF or below?
--What awg is the primary winding?
1. Snubber resistor's value isn't critical, but keep in mind that lower value resistors will heat up significantly more. You can't use too high value resistors though, because then snubber wouldn't serve it's purpose. I think he used 2 ohms.
2. No, these capacitors are only to provide higher current when circuit needs it, so I think that 3x 2200uF will work just fine
3. In my opinion it's better to start with higher value capacitor and then gradually going down. You can also calculate it's value(he explained how to do it in his video about ignition coil drivers)
@@Antek1234l thank you :)
Love this sort of info!
You have more coffee table conversation pieces than I have brain cells.
I'm really interested in the continuous operation! What supply voltages can it keep up with?
See I need a high voltage, high frequency source for some... vacuum fun. Particle physics stuff, need to get these millennial particles excited!
In the triple parallel FET circuit diagrams... why are gates and drains showing as connected together?
Is there some aspect of FET operation that I've failed to understand?
The points where the parallel gate connections cross over the parallel drains are all showing as connected, so this must have been deliberate as these drawing programs don't create connections without the designer designating such - again as far as I know.
What am I missing please?
That might be a mistake in the schematic
I wish I had your intelligence, you are way too smart for human being.
In my opinion, having too much insulation is a good idea with anything that uses high voltages
Very beautiful my dear friend
Could you do a variation of the driver using exposed vacuum tubes I know it will be less efficient but I'm going for looks over efficiency I want to build a steam punk style one
Excellent
Does anyone have an updated circuit diagram for this project? The configuration of the FET's and 2n3906 looks wrong. I've wasted FET's and BJT's and diodes.
send me your email if you want, I have a pdf with an updated schematic.
Can i have that to
I made it this time and at first it failed terribly, I mean it killed like 10 mosfets, and now I am getting ready for success....
Trying to repeat. There is bunch of errors in demonstrated circuit cheme. First - gates of mosfets short connected to drain. Second - pnp is up side down, I don't know others, but i can't manage it to work with the listed components. No oscillations.
Thanks for pointing this out, I don't know much, but this sticks out like a sore thumb. I hate it when the schematics are wrong. People spend a lot of time and effort trying to replicate circuits like this that are just plain wrong. I often wonder if it's intentional.
Did you manage to solve it?
I think the shorts on the schematic are probably just from carelessness, it shouldn't be connected, the fets are supposed to be in parallel
Hey, it actually worked for me. I got around 75KV. But I used a irfp250 mosfet
@@sree137918 hey and then you used the timer on 24v? Making a parallel connection for vcc to power both parts of the circuit?
What's the maximum voltage this circuit can handle? You know I need longer arcs.....and it was tremendously impressive dude...keep it up
I have w doubt you can touch the Spark even when the voltage is that High is because the current is low enough right?....but when touching it you just reached out to it or have to ware rubber shoes and all
Hello just checking in on that submarine kayak project. I subscribed so I wouldn't miss it.
Superb
Awesome
Can you do that? Put three FETs in parallel to act like one big FET ?
does that homemade plasma globe produce some X rays?
Hi, a couple of comments on your otherwise great video.The Slayer exciter circuit work with both a BJT and MOSFET alike, the big difference is the BJT can sink significant current via the Base Emitter junction effectively providing a return path for the secondary coil current which is not insignificant ( depending on the transistor it can pass up to ⅓ the Collector Emitter current) negating the need for a Base to ground secondary return resistor. This is not not the case with a MOSFET which has a high impedance Gate to Source, so you have to provide somewhere for the secondary current to go, this whole circuit could be much simplified by using a suitably rated 12V Zener Gate to Source across say a 100 Ohm and a 470 Ohm pull up to supply, you mention in your video 3.40 “ Buffering the current to the Gate”? This makes no sense as there is no gate current to speak of.
I DONT UNDERSTAND NUMBERS BUT ITS COOL AF
Love the outtro: Basically, anything can kill you if you're dealing with high Voltage AC. Also, I added a fan!
10/10
But I WANT tons of wires everywhere. Cool vid
5:30 the pnp 3906 is reversed in your shematic !
I know this is an old video but the mosfet gates seem to be connected to The Drain's at 5:27 in the video?? I am about to build this and have a play ;-)
yeah that's an error in the schematic, sorry
I would love to safely play with one of these medium strength tesla coils, but as I live in on the 4th floor of a 6 floor apartment building, I am wondering about how much and what type of EM interference noise It would possibly be generating to outside my unit into my neighbours dwellings. I woudn't want to cause much in the way of this, as I don't wish to make them upset with my running it in here.
p.s: I would probably purchase an off the shelf already available one... any recommendations?
They'd be too far away to catch any interference. It really only affects unshielded electronics within a few feet
@@HyperspacePirate Thank you Hyperspace Pirate... ok, so that gives me more confidence to check into getting one... * I'd love to be able to make one like you've shown in other previous videos on a simple scaled down version of what's shown here, (very impressive, btw), but I'll purchase a small one first and start playing... and maybe build one later.
@@HyperspacePirate how much frequency could these switch? I have a 1MHz coil with no toroid, with toroid it goes to 650kHz
@@Headbutter-Lettuce90 This one is around 300 kHz. A typical MOSFET would probably work ok up to around 1 MHz
@@HyperspacePirate I plan to make a fatter secondary, I'm using 38AWG since it was all I had on hand, my new coil will be like 450kHz
is it possible to have a conversation by a coffee table over this noise? or is the camera making it out to be worse than it is?
Do you reckon haveing 300,000 turns on a tesla coil is overkill?
awesome!
cant you build the case out of plastic or wood? will that work?
Uhhhh...yeah
Increase the frequency until it loses its tendency to penetrate the body. Skin depth will decrease with increased frequency. Pretty sure Tesla was making people glow like this and even observed phenomena that corresponded to acupuncture points. Pretty sure at a high enough frequency he mentioned that the air in the room began to glow. Can dig for the article if you are interested.
Surely that's a reputable source...
@@ex5080 thanks for contributing!
Man, i want that article. or any info
Your push-pull Transistor on schematic are kind of reverse, is that your schematic correct
Careful using screwdrivers around TCs. They build up a charge like a capacitor. Had one screwdriver discharge on me and my arm kicked so hard the screwdriver nearly stuck in the ceiling as it flew out of my hand.
Wtf kind of goofy screwdriver you using? You were probably charged. A screwdriver doesn't have enough surface area to form any meaningful capacitance
I was holding the plastic handle. the metal tip, which was on the end a full tang rod, was stuck into the sparks was not grounded to me. Apparently I became one plate, as it were, and the metal rod running through the handle of the screwdriver was the other plate. The plastic handle was the dielectric.@@TantalumPolytope
@sojournerdelaterra6144 with that little surface it would discharge extremely fast and hold almost no charge, I'm pretty sure something different happened, maybe you didn't see an arc to the screwdriver but when you touched it it was receiving electron anyways (like corona or something)
@@ElPsyCongroo. I can only share what I observed. It wasn't a spark from the coil. I can take sparking coil voltage all day long on my hands. Ultra-high voltages travel over the skin, not inside the body. This, however was a deep muscle kick which is indicative of an amperage release. Thus, I could only conclude it was a capacitive discharge of something between me and the coil and that was the screwdriver.
@sojournerdelaterra6144 or phenomenon happened that caused a lower frequency arc? I don't know, tesla coils are like that sometimes
The FETS that you used, are they the IRF640 or the IRF640N? And what is the difference between them, if it is of any significance?
Datasheets bruh
Is it possible to make variable interrupter say from 20Hz to 400Hz?
Yes that's very easy. You just need a 555 timer
@@HyperspacePirate thanks
This project shows a lot of electronic analog circuit complications very sophisticated electronic circuitry here would be expensive and very time consuming construct someone who builds this should have a degree in electrical engineering for safety issues
@11:35 Are x-rays created here if there's a vacuum in the bulb?
Yes, but that particular bulb doesn't have vacuum inside. If he used vacuum tube, x rays would be created
Special effects or Proximity EMF ?
Pretty epic
Hello, could you provide the schematic files? I would love to build my own
lol dog is like "tesla coil time again? no wonder your wife left you"
Do you think your circuit could work well at higher input voltages? Say 40 or 50 volts?
i have a question if you don't mind
do the voltage rating of the mur120 diodes have to match exactly with the mosfet?
planning on trying this out with irf460 so can i use mur160?
also can i use 100 watts for the 2 ohm snubber resistor?
They don't have to match exactly, but whichever component has the lower max voltage will be the limiting factor
😃 can you measure Teslar 21700 internal resistance video have ! 13 mili Omp is it new battery or 18 mili Omp is it new or old battery !
you could've kept the top load and added a break out point
nice but what type of battery is he using ?