Jim, excellent work.

@Jimscoolstuff

2 жыл бұрын

Thanks for your kind comment. I enjoy your channel as well. Best regards.

@alloverflorida5886

2 жыл бұрын

I subscribe to both of your channels, commendable work done by two very knowledgeable gentlemen! Thank you both for the wealth of knowledge you have shared to those of us who are intrigued by this sort of Magik! 😉

@Jimscoolstuff

2 жыл бұрын

@@alloverflorida5886 Thanks for your kind words. Best regards.

@theengineeringmonkey407

8 ай бұрын

Just getting into the world of high voltage and both of your channels are going to be huge help!

Love it! It’s a lecture thats colleges forgot to add to their curriculum. It’s some real gold you are putting out for free

@Jimscoolstuff

6 ай бұрын

Thanks for your nice comment.

Awesome thanks from Australia. I worked for the Australian navy as an electronics technician in training and our lecturers would teach just like this video. Great training by people who could explain and communicate. Yes I did learn and it bought back some great memories.

@Jimscoolstuff

4 ай бұрын

Thank you for your nice comment.

You've explained pretty much everything I learned from experience ! The snubber diode I hadn't thought off. I mainly relied on my fet high drain to source voltage tolerance. Had an issue that blew my power supply when I decided to parallel the fets. The unclamped voltage of the primary was to high, the psu was clamped by a pair of schotty diodes that heated and malfunctionned. I got 7 to 8 amp at 32V from a 1.3Mhz secondary. Really scary angry flame. I made other coil since but the best way to drive high frequency coil seems to be from secondary direct feedback. Using a TVS diode to protect the base/gate is a must. I can't wait to look at your next video. Thanks !

@Jimscoolstuff

9 ай бұрын

Thanks for your comment.

The snubber is a good idea. I've run a slayer exciter on a mosfet as a quick experiment a couple pf years ago, but didn't have time to finisj experimenting. I was hoping you had a more detailed analysis like you did in this video. I'm bummed that you haven't posted a follow-up!

Jim. Thanks should go to you for an excellent vid. Interesting , informative and all subjects clearly and carefully explained. I've been coiling for nearly ten years now , and still learning ! Excellent work.

@Jimscoolstuff

Жыл бұрын

Thanks for your kind words.

Jim, I can't tell you how valuable this video was. It really helped me understand my project much better. Thank you very much.

@Jimscoolstuff

Жыл бұрын

Thank you for your nice comment. Good luck on your project.

Finally someone explains every little component and why its needed/helps protect the circuit! awesome...

@Jimscoolstuff

2 жыл бұрын

Thanks for your comment. It is nice to know when a video is appreciated.

@II_superluminal_II

2 жыл бұрын

agreed

Very clear explanation. Excellent video. I love the fact that the electronics are explained in detail.

@Jimscoolstuff

Жыл бұрын

Thank you for your nice comment.

This channel is way underrated! Great job Jim!

@Jimscoolstuff

Жыл бұрын

Thank you for your nice comment.

Jim, thank you. Right now i am studying as an electrical apprentice here at BCIT in Canada. A project woth my son is going to be a small tesla coil. Most videos just show how, and what to put where. I enjoyed the format, the knowledge, and even the safety tips. I am now a subscriber, and thanks to you my projects will be better and safer.

@Jimscoolstuff

Жыл бұрын

Thank you for your nice comments.

You're truly a gift, thank you for this video. You solved so many questions I had and didn't know to ask. The snubber circuit was a question I was wondering how I would fix. Thank you. Also the medical warning, so fantastic. Thank you. I'm Wayne Lambright, I figured out how gravity control works and I need high voltage to make it work. I'll let you, know if my prototype flies.

@Jimscoolstuff

2 жыл бұрын

Thankyou for the nice comment.

I built my first Tesla coil 50 years ago. You learned me some new stuff.

@Jimscoolstuff

Жыл бұрын

Thank you for your comment.

Hi Jim. Very interesting masterclass. I've learned many new concepts and keep in mind the three life saving safety items to work with transistors. And.... I loved the power recycling led snubber network, that was the cake cherry to me! Best regards from Julian !

@Jimscoolstuff

7 ай бұрын

Thanks for your nice comment.

Very clear and backed up with good graphic support.

@Jimscoolstuff

2 жыл бұрын

Thanks for your comment.

Thanks sir, that was a great class. We really apreciate the fact that you are sharing such valuable knowledge out there. Even your burns and problems with the camera , i think its important to include those bits , mistakes are oportunities to learn. That was really cool.

@Jimscoolstuff

7 ай бұрын

Thanks for your nice comment.

Thank you for your video. You are an excellent teacher. You have a great gift for teaching. God bless you.

@Jimscoolstuff

6 ай бұрын

Thank you for your very nice comment. Best regards, Jim

Excellent video Jim! Thanks to your very clear explanation of the Slayer circuit, I’m now more confident of building one that won’t destroy itself! It takes a lot of time and effort to film and edit these videos and this is one of the best I have seen in terms of getting started with Tesla coil construction.

@Jimscoolstuff

7 ай бұрын

Thank you for your nice comment.

@teunlll

6 ай бұрын

Try using more transistors in parallel to each other.

Hey cool video! My son and I just made one for HS science class.. this video was helpful. Thank you for posting!

@Jimscoolstuff

Ай бұрын

Thanks for your comment.

best explanation yet ,congratulations,sir.

@Jimscoolstuff

9 ай бұрын

Thank you for your comment.

Very very very good explanations

Great work Jim, excellent video thank you! I have a Siglent SDS1104X-E oscilloscope (100MHz) with Siglent AWG and followed your work to find resonance without success. As my AWG module operates from the scope itself rather than a separate unit like you have, my scope screen is more cramped which may also expIain why I have a lot more 'noise' with my coil signal overlayed onto the generated signal. Splitting the scope screen and zooming into the coil signal provides better definition, and whilst there is more 'noise', I can see both the generated signal and the coil signal clearly but I don't see any decrease in signal as you have successfully demonstrated at the resonant frequencies. I started at 1kHz and slowly increased to 10MHz several times without seeing any decrease in the signal. I also watched the signals via my web link which provides scope control and viewing on my computer monitor which makes viewing easier . Now I have sore eyes and a tired brain so will have to rest for a while. I would greatly appreciate if you could please provide any further insight. Thanks again

@Jimscoolstuff

6 ай бұрын

The only thing that I can suggest is to make sure your Oscilloscope, power supply, and oscillator are all grounded to the same place. Thanks for your comment.

@andyroberts219

6 ай бұрын

@@Jimscoolstuff Thanks Jim, much appreciated!

good video . nice explanation

Awesome video, this is really cool stuff Jim. Thanks for sharing.

@Jimscoolstuff

2 жыл бұрын

Hi Terry, Thanks for the nice comment. I just subscribed to your channel.

@terryandersonart9007

2 жыл бұрын

I have yours saved in my favorites. Thank you Jim.

@II_superluminal_II

2 жыл бұрын

agreed

Good information. Thanks! The biasing resistor is needed only to start the oscillation. So receiving coils don't need it. It's also possible to trigger the start with external spark. The hairpin circuit seems a lot more safe, cause it isolates the oscillation from the source. Spark gap also has chaotic frequency that adapts to the load, so seems like it doesn't cause nerve damage that easily.

@Jimscoolstuff

6 ай бұрын

Thanks for your comment.

Thank you for the clarification. I feel like building a tesla coil immediately.

@Jimscoolstuff

8 ай бұрын

Thanks for your comment.

Your methods are very clear..

@Jimscoolstuff

2 жыл бұрын

Thankyou for your nice comment.

@II_superluminal_II

2 жыл бұрын

agreed

Your awesome! Thanks for the great explanation. 🙏

@Jimscoolstuff

4 ай бұрын

Thanks for your nice comment.

Thanks for your time

@Jimscoolstuff

8 ай бұрын

Thanks for your comment. Best regards.

Your channel is a treasure

@Jimscoolstuff

Жыл бұрын

Thanks for your kind comment.

Jim does have some cool stuff.

@Jimscoolstuff

Жыл бұрын

Thanks for your nice comment.

Thanks, Jim. Great info.

@Jimscoolstuff

2 жыл бұрын

Thanks for your nice comment. Best regards.

@II_superluminal_II

2 жыл бұрын

agreed

Really needed this video 🔥

@Jimscoolstuff

Жыл бұрын

Thanks for your comment.

VERY COOL STUFF... l'd love to see how you made the coils.

@Jimscoolstuff

Жыл бұрын

I used a lathe with a horizontal feed rate as close to the wire diameter as I could get. I held the wire with a rag to maintain tension. I rested my hand on the tool post and manually guided the wire. I used the lowest spindle speed setting. Thanks for your comment.

Great video!

@Jimscoolstuff

7 ай бұрын

Thanks for your nice comment.

😃 grazie delle spiegazioni.

@Jimscoolstuff

9 ай бұрын

Thank you for your comment.

Very good video Jim 👍

@Jimscoolstuff

2 жыл бұрын

Thankyou for the nice comment.

@II_superluminal_II

2 жыл бұрын

agreed

Sir u really helped me💕.Tnx a lot

@Jimscoolstuff

2 жыл бұрын

Thank you for your nice comment.

@II_superluminal_II

2 жыл бұрын

agreed

Very educative video! I was searching the second video about Tesla coils using a mosfet.But i cant find it. The first 4 capacitors are electrolitic?Can we use polyster type?

@Jimscoolstuff

7 ай бұрын

The capacitors are 0.47 uF, 400 volt metalized polyester. They are not electrolytic.

@instructoruldemeditatie2367

7 ай бұрын

Thank you!What is exactly their purpose? I used electrolitic type and they are heating too much.I tried the circuit with just a single polyster type 20 nf i think ,630 v and it's not working..I will use larger value.

@Jimscoolstuff

7 ай бұрын

The purpose of these capacitors is make the DC power source exhibit a very low impedance at the operating frequency of the oscillator.@@instructoruldemeditatie2367

Excellent presentation. Thanks for sharing. Just have a practical question, however. Finally, at the end of it all, what can a Tesla coil like this do, to generate usable energy, in excess of what it consumes, if at all? Thank you.

@Jimscoolstuff

8 ай бұрын

The Tesla coil is not magic. It cannot generate more energy than it uses. Thanks for your comment.

@tonyrebeiro

8 ай бұрын

@@Jimscoolstuff Thank you. Understood. Waste of time for me. 😄😄

Grazie a te. Ora io sto provando con un mosfet. Ho capito che il tuo schema non funziona con mosfet. Cosa devo cambiare per farlo funzionare? (mosfet IRFP260).

this is super cool!

@Jimscoolstuff

2 жыл бұрын

Thanks for your super comment.

Great video

@Jimscoolstuff

2 жыл бұрын

Thanks for your nice comment.

@II_superluminal_II

2 жыл бұрын

agreed

do you have a part # on the tvs diodes? and all other diodes in circuit? Letters and numbers on diodes would help.

@Jimscoolstuff

2 ай бұрын

The diodes that I used were 1n4006. This is a 1 Amp, 800v diode. A lower voltage diode will work just fine. I used the 1n4006 because I had them.

@nathanbunten4299

2 ай бұрын

@@Jimscoolstuff Thank you so much. I have been trying to make the same circuit. I got it to work but wanted to add the protection. Great work. Thank you again.

@Jimscoolstuff

2 ай бұрын

Thanks for your comment.@@nathanbunten4299

I want to develop an off grid tesla type coil just to charge two battery banks (without solar) charging one while using the other. Can this be done?

@Jimscoolstuff

10 ай бұрын

You say "off grid" and "without solar" so where are you planning to get the energy to charge the Battery?

Hello sir my secondery coil resonance frequency is 61khz What will be the frequency of the interrupter circuit? Can both be the same? Waiting for reply...✋

@Jimscoolstuff

6 ай бұрын

The oscillator will run at the resonant frequency of the secondary coil. Best regards.

Can you use a tesla coil as a ham radio antenna? Will it still shoot out sparks?

@Jimscoolstuff

Жыл бұрын

In the early days of radio, transmitters were actually spark gap type tesla coils. They were connected to antennas to radiate the energy.

NIce vid！

@Jimscoolstuff

2 жыл бұрын

Thanks for your nice comment.

@II_superluminal_II

2 жыл бұрын

agreed

Does the pizza pan leak corona and if a needle is added to pan edge will an arc breakout to air?

@Jimscoolstuff

2 жыл бұрын

There is no corona from the pizza pan because it has no sharp points. Corona from a sharp wire attached to the pizza pan is shown in the video.

@lancemenke2728

2 жыл бұрын

​@@Jimscoolstuff Thanks have a nice day. The snubber saves transistors picking the correct values works as shown the led gives indication when transistor has is close or hit collector voltage limit. There is another video same subject had the solution for transistor failure was to just stack them many as you want in parallel, over voltage failure can make even greater quantities of magic smoke until the power source is current limited out. The dreaded entire work station can go surge pulse mode damage to anything powered on joy joy... The frequency sweep method to find resonance with the top load variations give best way to give the eyes on real world changes to values for a part that has been created original as 1 of 1.Your description so far best. Thanks

@Jimscoolstuff

2 жыл бұрын

@@lancemenke2728 Thankyou for your comment.

How old you man?

Going to call you Sparky from now on. LOL

@Jimscoolstuff

2 жыл бұрын

Thanks for your comment. Maybe Burnie would be a good name for me.

@II_superluminal_II

2 жыл бұрын

agreed

👍 Liked & sub'd

@Jimscoolstuff

2 жыл бұрын

Thanks for your straight to the point comment.

@II_superluminal_II

2 жыл бұрын

agreed

Rubber shoes and straw brain

Pretty damn cool!

@Jimscoolstuff

Жыл бұрын

Thanks for your comment.

I use a Z44N mosfet with a voltage divider formed by a potentiometer. It's working but it's hot in a couple of seconds. For power, I use a laptop charger 19 volts and 3 amps but also with 12 volts, although maybe a millimeter of plasma can be seen, the mosfet heats up extremely quickly, therefore I think the problem it's not the source, but this circuit that I found on KZread, only that it used a different mosfet.. I tried to add the circuit that you show in the video, the one with the LED, it's working, the diode in the snubber is getting also hot, but there is no improvement, the mosfet is still extremely hot in a few seconds.. What I tried and it seems to work somewhat is to connect an incandescent bulb in series with the source, a bulb of about 12 volts and two amps. In this mode, the circuit can work for a few minutes. It probably limits the current to which the mosfet has access. I suspect that it remains open too much and works like a short circuit?? This is the original circuit..Any feedback? kzread.info/dash/bejne/aZd4pdGQZcm6m84.htmlsi=m2mWc3Z7fYz1wyj0

@Jimscoolstuff

7 ай бұрын

Try lowering the frequency by adding a cake or pizza pan to the top as shown in my video. Also double the number of turns on the primary and spread the turns apart by 1/4 to 1/2 of an inch between the turns. Good luck.