Friend (which is a prof. in EE) told me that its not the same how the primary coil is wired so according to his comments on the topic I tweaked mine coil a bit so here are mine findings: I found out that best is to use 2 loops in opposite winding direction to the secondary coil and covering only first 25-30% of the secondary coil. The power consumption (using 12V) dropped from 6W to 4.5W and the spark grow up to 2mm bright one and 5-7mm thin dim ending. My original coil had ~7 loops and had the same winding direction as secondary coil and covered ~90% of it... while tweaking the same direction with 2.5 loops 25% coverage did not even start up the resonance (no spark and LED was not shining at all with only ~1W consumption) ... Also interestingly puttng a load (like light bulb) near spark decrease power consumption (which in my former coil was increasing power consumption instead). Also now my coil is powerfull enough to light up even big 100W light bulb (connecting the secondary coil ending to one pin of ligh bulb and ground to the glass like holding in hands close to the inner wires) producing awesome shiny and wide sparks in low preassure gas up to ~1cm long on both wire endings inside the bulb
I am an EE (got recommended this after buying a few of these) You have too many windings on your primary coil and they cover too much of your coil itself. Try 1-2 windings that remain as close to the bottom as you can (if you ever look at bigger coils you will notice that the primary is almost always fixed in a flat plane almost like that of a stove element). Beyond that though, cool video showing people this!
The coupling is higher if the primary is closer to the center from my experience. the big ones will arc over from to high coupling if you move the primary to high so they move it low. You want higher coupling in this setup as its not going to arc over. As an EE I think you can understand coupling.
Eh wouldn't it be super difficult to solder it ? Like the heat from your soldering iron will transfer to the heat sink really fast and cold solder the leads
Thank you for showing this kit...... I couldn’t believe i found someone who got the same kit. I was fumbling with the Chinese directions as well. Then did the translation as well Also wasn’t 100% sure which each red light was indicating. Tried it with a 9V transformer, but the current was to high, my heat sync was getting hot. Lol I by mistake had the secondary coil downwards and i had soldered in the white light bulb into J3 ..... I’m trying to get a better look on your primary coil winding. Will 4 times around on the primary be fine I’m guessing. And I will try it again .... Thanks again Gunars
Hi Gunars, I also struggled with getting the primary coil right. I had it wound the wrong way around first and then found that it worked better with one less coil. Also, try make sure that the primary coil is fairly evenly spaced around the secondary coil and isn't touching it anywhere. Good luck with your build!
I purchased what appears to be the same or at least similar product Instructions were all in Chinese as well. I did manage to get the coil working but could not seem to get any sound also 1 of my led's lights up bright but I did not notice that in yours I'm not sure if the correct led is lighting or maybe I have done something wrong any ideas? And where does the sound actually come out from as there is no speaker in this circuit?
I bought two kits from Temu. The largrer one appears to be similar to this one. If haven't assembled it yet but have put together the smaller one. It came with no power supply so I used one that was included in the large kit. After assembly the coil appeared to be working but the LED inside prewound coil wouldn't light up. The small test bulb that was included did light up when brought close but there was no plasma discharge. A regular sized flourecent bulb lit up as well but not very bright. I didnt know how to attach the main coil to PCB board so I used some poster tack putty stuff. It wasn't quite enough and the coil moved around and eventually came off, loosening the copper wire. After making repairs and using more putty, the LED worked and a plasma discharge was visible. Now the light bulb lights up very bright. Have no idea what else I can do with this Tesla coil so if know of anything lmk. I'm going to assemble the larger kit once I get some more solder. Does the prewound coil have to be perfectly sealed? I noticed the use of a flashlight to test it. Your coil appears to have an arrow to indicate which way is up. Does that matter for performance? The smaller kit didn't have as many pieces is probably not anywhere near the same design but I figured I'd ask. Great video, Sir! Thanks for sharing it with us.
This kit is 1.89 euro on Ali ( bundle deals) If you don't see it appear in your bundle deals then put it in your regular cart but don't pay for it. Then it will probably appear in your bundle deals for the mentioned price.
I bought one of these, but is dummies need to know safety first. Example: are you able to touch the arch, will we get electrocuted of we touch the coil or any other part. What is the volts and amps of that arch and the primary coil ect. Tyty sub
thanks for this I just assembled this on my own for my friend and was curious why the bulb light was shipped with this and how to safely to test this... I do not speak nor read chinese and have no english description...After finding your video I found the answer :). Also just in case what voltage to use? I experimentaly (using lab power source) deduced 12V 0.5A
Yeah the instructions included with these kits are not great. The bulb is just to test or demonstrate that the coil is working. I think mine said something about 9-18V if I remember correctly. 12V should be fine though.
Got one, dud from the start. The cable they gave to go around didn't even go around the circumference once! Didn't they ever discover Pi in math class?? Components all correctly polarized, which needed to be, soldered, and not any life at all, just 2 led lights to show for the money!
I’m missing the capacitor and primary winding. I have tons of both but not sure on the type of the bigger cap if you could send me the value would be great.
@@MichaelKlements Thanks for the answer! But isn't it a very high voltage and a very high frequency? I thought it could cause you even a deadly electrical shock..
The high voltage produced isn't dangerous because this coil can only produce an extremely small amount of current. This coil doesn't have enough power to cause significant harm. I'm not saying that all tesla coils aren't dangerous, large ones most certainly will shock you and might be lethal.
the high frequency is safer because our impedance is much much bigger ... the most dangerous contact AC frequency for humans is 50Hz because its very similar frequency to heart beat and can overide our muscles control and also our impedance is at minimum. The touch of coil will produce obvious burning but just surface one and not very strong however I would not have this turned on near me all day long as there are also other effects related to the RF properties of the spark and coil itself (no touch) as even 1 Joule of radiation absorbed in "small" amount of time and space is considered dangerous for our cells and as I have no clue what frequency it produces and emits ... specific frequencies attack specific parts of human body for example 300MHz is absorbed mostly by brain. Also do not have any sensitive electronics near the coil like phones,ICs, etc ...
@@user-ng2dl4eg9y yep ~1Hz is the overal frequency but its not a sinusoid but merged signal instead where IIRC the peak parts composite frequencies are ~50Hz so external near 50Hz currents can easily overide mouscle control ... one of the reason why people can not let go of touched life AC wires
On the Pcb the part that has a star like picture is the cathode. The cathode is the shorter leg of the led or the side of the led that has a flat spot.
Are you saying its silent when trying to play music through the audio input? What supply voltage are you using? You could try increasing it (within the recommended range).
Is the coil working, if you place the light bulb near it, does it glow? My one starts playing music at an audible level from around 12V. Also perhaps check your soldered connections to the audio socket.
Friend (which is a prof. in EE) told me that its not the same how the primary coil is wired so according to his comments on the topic I tweaked mine coil a bit so here are mine findings: I found out that best is to use 2 loops in opposite winding direction to the secondary coil and covering only first 25-30% of the secondary coil. The power consumption (using 12V) dropped from 6W to 4.5W and the spark grow up to 2mm bright one and 5-7mm thin dim ending. My original coil had ~7 loops and had the same winding direction as secondary coil and covered ~90% of it... while tweaking the same direction with 2.5 loops 25% coverage did not even start up the resonance (no spark and LED was not shining at all with only ~1W consumption) ... Also interestingly puttng a load (like light bulb) near spark decrease power consumption (which in my former coil was increasing power consumption instead). Also now my coil is powerfull enough to light up even big 100W light bulb (connecting the secondary coil ending to one pin of ligh bulb and ground to the glass like holding in hands close to the inner wires) producing awesome shiny and wide sparks in low preassure gas up to ~1cm long on both wire endings inside the bulb
thanks!
would it make a bigger spark if i used a 15 or 30v plug like it said in the manual?
@@firemyster4707 yes up to a point but tweaking the coil itself usually lead to much better improvements than voltage alone
Thanks Peter.
I’m very confused with how to do this Ik this was a long time ago but if you see this can u explain or send a photo 😊
I am an EE (got recommended this after buying a few of these)
You have too many windings on your primary coil and they cover too much of your coil itself. Try 1-2 windings that remain as close to the bottom as you can (if you ever look at bigger coils you will notice that the primary is almost always fixed in a flat plane almost like that of a stove element).
Beyond that though, cool video showing people this!
Thanks for the tip Brodie, I'll give that a try.
The coupling is higher if the primary is closer to the center from my experience. the big ones will arc over from to high coupling if you move the primary to high so they move it low. You want higher coupling in this setup as its not going to arc over.
As an EE I think you can understand coupling.
You should have attached your transistors to the heat sinks before soldering them to the board.
Eh wouldn't it be super difficult to solder it ? Like the heat from your soldering iron will transfer to the heat sink really fast and cold solder the leads
Power supply ? It's written on the board at 1:12 -- DC15-24v, for those who don't bother to look !!
do you think you could increase output voltage just by lowering the amount of turns in the primary coil?
I bought one of these. Me and my buddy gonna use the arc to light our spliffs
Thank you for showing this kit......
I couldn’t believe i found someone who got the same kit.
I was fumbling with the Chinese directions as well. Then did the translation as well
Also wasn’t 100% sure which each red light was indicating.
Tried it with a 9V transformer, but the current was to high, my heat sync was getting hot. Lol
I by mistake had the secondary coil downwards and i had soldered in the white light bulb into J3 ..... I’m trying to get a better look on your primary coil winding.
Will 4 times around on the primary be fine I’m guessing.
And I will try it again ....
Thanks again
Gunars
Hi Gunars,
I also struggled with getting the primary coil right. I had it wound the wrong way around first and then found that it worked better with one less coil. Also, try make sure that the primary coil is fairly evenly spaced around the secondary coil and isn't touching it anywhere.
Good luck with your build!
Michael, Ahh ok ...thanks... I need to buy a variable voltage supply , up to 15- 30V I believe it was .... thanks again !
I purchased what appears to be the same or at least similar product
Instructions were all in Chinese as well. I did manage to get the coil working but could not seem to get any sound also 1 of my led's lights up bright but I did not notice that in yours I'm not sure if the correct led is lighting or maybe I have done something wrong any ideas?
And where does the sound actually come out from as there is no speaker in this circuit?
I bought two kits from Temu. The largrer one appears to be similar to this one. If haven't assembled it yet but have put together the smaller one. It came with no power supply so I used one that was included in the large kit. After assembly the coil appeared to be working but the LED inside prewound coil wouldn't light up. The small test bulb that was included did light up when brought close but there was no plasma discharge. A regular sized flourecent bulb lit up as well but not very bright. I didnt know how to attach the main coil to PCB board so I used some poster tack putty stuff. It wasn't quite enough and the coil moved around and eventually came off, loosening the copper wire. After making repairs and using more putty, the LED worked and a plasma discharge was visible. Now the light bulb lights up very bright. Have no idea what else I can do with this Tesla coil so if know of anything lmk. I'm going to assemble the larger kit once I get some more solder. Does the prewound coil have to be perfectly sealed? I noticed the use of a flashlight to test it. Your coil appears to have an arrow to indicate which way is up. Does that matter for performance? The smaller kit didn't have as many pieces is probably not anywhere near the same design but I figured I'd ask. Great video, Sir! Thanks for sharing it with us.
Can you use every glue for the coil?
id say so yes
I got the same at home 😊 thanks you for your help ☺️
Mine isn’t working it came without a cable so I used a small silicon wire. I am new to this, do I need a special wire?
This kit is 1.89 euro on Ali ( bundle deals) If you don't see it appear in your bundle deals then put it in your regular cart but don't pay for it. Then it will probably appear in your bundle deals for the mentioned price.
I bought one of these, but is dummies need to know safety first. Example: are you able to touch the arch, will we get electrocuted of we touch the coil or any other part. What is the volts and amps of that arch and the primary coil ect. Tyty sub
Dear sir, can you hear sound transmitting to radio on am or shortwave band
overall a good video, but I'm gutted you sped past the secondary coil installation, I don't know what to do with it...
Hahahaha I’m goin to put a bigger cap too see if I can pump up the sparks lol. Wish me luck.
what happended when u did that?
@@firemyster4707 heated up transistor lol
Looks like about 15kV, 5mm gap to arc ? Thanks for sharing :)
what happens if it starts smoking
I subscribed! I love electronics!!!
thanks for this I just assembled this on my own for my friend and was curious why the bulb light was shipped with this and how to safely to test this... I do not speak nor read chinese and have no english description...After finding your video I found the answer :). Also just in case what voltage to use? I experimentaly (using lab power source) deduced 12V 0.5A
Yeah the instructions included with these kits are not great. The bulb is just to test or demonstrate that the coil is working. I think mine said something about 9-18V if I remember correctly. 12V should be fine though.
i will have this one
Is it ac or dc? What polarity is it, and what voltage is it?
They're AC and usually a few thousand volts on these smaller models.
Can you also light up a single led
no
@@guitardude5364 he literally showed it doing that
How did you attach the secondary coil to the board? What is that tool?
Looks like UV cure superglue. Air cure superglue should work fine, Or urethane glue
I have it
i got one from amazon and its discharge was 2cm it looks like yours is not
working
Got one, dud from the start. The cable they gave to go around didn't even go around the circumference once! Didn't they ever discover Pi in math class?? Components all correctly polarized, which needed to be, soldered, and not any life at all, just 2 led lights to show for the money!
I’m missing the capacitor and primary winding. I have tons of both but not sure on the type of the bigger cap if you could send me the value would be great.
I’ll see if I can find the board again, it’s probably around a 100uf
@@MichaelKlements sry bud it’s ok. I found it lol. I’m frikin blind , it was written on da board lol.
Can a computer circuit board work
Hi I gotten mine am not too familiar thus learning thru ur video
does it come with the power plug input?
Mine didn't come with a power adaptor
@@MichaelKlements if I get a USB to 5.5 * 2.1 cable how many amps should it be and how many volts?
I buy this kit but not working
How do you power it?
You can power it with any 12V-24V DC power supply or battery, it doesn't draw much power.
what happens if u touch it? is it dangerous?
The arc is hot, so will "burn" the surface of your skin, but it's not powerful enough to do any significant harm.
@@MichaelKlements Thanks for the answer!
But isn't it a very high voltage and a very high frequency? I thought it could cause you even a deadly electrical shock..
The high voltage produced isn't dangerous because this coil can only produce an extremely small amount of current. This coil doesn't have enough power to cause significant harm.
I'm not saying that all tesla coils aren't dangerous, large ones most certainly will shock you and might be lethal.
the high frequency is safer because our impedance is much much bigger ... the most dangerous contact AC frequency for humans is 50Hz because its very similar frequency to heart beat and can overide our muscles control and also our impedance is at minimum. The touch of coil will produce obvious burning but just surface one and not very strong however I would not have this turned on near me all day long as there are also other effects related to the RF properties of the spark and coil itself (no touch) as even 1 Joule of radiation absorbed in "small" amount of time and space is considered dangerous for our cells and as I have no clue what frequency it produces and emits ... specific frequencies attack specific parts of human body for example 300MHz is absorbed mostly by brain. Also do not have any sensitive electronics near the coil like phones,ICs, etc ...
@@user-ng2dl4eg9y yep ~1Hz is the overal frequency but its not a sinusoid but merged signal instead where IIRC the peak parts composite frequencies are ~50Hz so external near 50Hz currents can easily overide mouscle control ... one of the reason why people can not let go of touched life AC wires
how is the cable that you put in 3:58 called
It’s the power supply, it’s just a barrel plug as used on an Arduino
@@MichaelKlements did it come with it?
I’m a bit stuck on which way round to stick the LED light.
There's a flat edge on one side of the LEDs, this aligns with the flat edge shown on the PCB for each LED.
On the Pcb the part that has a star like picture is the cathode. The cathode is the shorter leg of the led or the side of the led that has a flat spot.
mine works except it is silent
any ideas?
Are you saying its silent when trying to play music through the audio input? What supply voltage are you using? You could try increasing it (within the recommended range).
@@MichaelKlements 20v and yeah it makes no noise when playing music through it
Is the coil working, if you place the light bulb near it, does it glow? My one starts playing music at an audible level from around 12V. Also perhaps check your soldered connections to the audio socket.
Pretty underwhelming
Any idea what is the purpose of J3 marked in the diagram (J3, + -)? Thanks.
It just looks like an alternate power input
It shows how clueless the chinese are as they silkscreened "pll tc" onto the board when it is just a slayer exciter circuit.
Thank you for QR‑code trapped into your camera’s view!
[downloaded] chinese instruction has nice pictures and much more