Great video Nick! It was a pleasure working with you on this, and I'm glad to see how well these designs work in your hands. Keep it up man!

@CoilLabs

2 жыл бұрын

Thank you, you as well! I wasn't kidding when I said this was easy to get working, it really was. Fired right up on the first try. Least amount of effort to get a Tesla coil functioning ever, lol. It's a great design!

@LabCoatz_Science

2 жыл бұрын

@@CoilLabs Thanks, hope you get some use out of the "music" port, I imagine it'll make your experiments in data transmission much more straightforward. Could also be useful for trying staccato and ramping...something I'm hoping to try sooner than later!

@CoilLabs

2 жыл бұрын

Yeah, I actually have been playing around with it a bit. I've tried feeding custom PWM signals from my function generator into it and looking at how the spark appearance varies at different ranges of both frequency and duty cycle. I've also played around with modulating the PWM based on the amplitude of an audio signal also being played over normal speakers, along with modulating the brightness of the LEDs on my workbenches, so that my whole lab "responds" to sounds, lol.

You just gained one new fan!!:) great Tesla coil!

This coil is sick.. man you did an amazing job 👏

Love your work! Can't wait to hit up the other channels involved. Collabs for the win.

FREEDOM LAND!!! Yeah baby!

This video earned my subscription. Excellent job!

Great collab guys, and dope Tesla coil, loved it. Perhaps someone will one day design an SSTC that doesn’t require breakout points, and doesnt blowup if sparks fail to break out. That’s what keeps me away from sstc land.

@CoilLabs

2 жыл бұрын

Thank you! Yeah, as awesome as this project was, vacuum tube coils are still my favorite. A lot more robust to being pushed a little too hard or having things slightly out of tune. Transistors just die instantly. There's no in between, lol.

@LabCoatz_Science

2 жыл бұрын

This circuit is very easy to get working and stay working (WAY more so than a plasma flame circuit)...maybe we should send our old friend Jay a PCB!

@Magneticitist

2 жыл бұрын

Guess it depends on what the goal is with no breakout right? Either to still get sparks without needing a point, or just transmitting without sparks. Both are pretty easy to do with an SSTC. This driver should be able to do it no problem, simply omit the breakout point and crank the input til it starts spitting. Doing this with 200v mosfets and a 170VDC input might not go smoothly the first time, but 650v switches that can do 180A pulsed is a different story.

@CoilLabs

2 жыл бұрын

Yeah, I tried running this a couple times with the breakout point taken off, though I still have the screw going up through the middle of the toroid, so it eventually started breaking out from that anyway. It seemed to do okay, but I didn't turn the variac up all the way either. It is riskier though, because all the energy stored in the secondary LC circuit has to go somewhere, if it's not getting dissipated by the sparks. You don't want too much of it going back into the primary and killing your transistors. Spark gap and even vacuum tube coils are much more robust to that kind of thing than SSTCs. Probably want to keep the primary-secondary coupling on the lower side of "still working" if you're doing no breakout point on an SSTC like this though, so there's less energy transfer back into the primary.

@Jbond7777

2 жыл бұрын

@@Magneticitist can u make a board that can handle say 50A at 50kv. With soft switches as in switches/fuses that can be reset. It will be at rf and adjustable. Also a RF finding function added. Rf low hz and high band hz frequency. Could you put a price on that. It would need to be a tough ss system.

*waits excitedly* That was really awesome! Cheers for sharing :)

Wow that green enamel is🔥

Great video, I've done ZERO research on sstc's, so it was cool to see something new!

Nice! They did a good job on the PCB's and it slaps together well.Those antennas can be a pain sometimes, and sometimes they work so good it doesn't make sense. I usually just avoid that altogether now and use a CT with about 30 turns on it. A lot of the times it can just drop right in with one leg going where the antenna was and grounding the other, making sure the phasing is right. The coupling is definitely a big variable and probably one I play the most with. The primary design changes coupling but can drastically affect how the sparks develop in ways that might not be immediately clear. It's all still trial and error at this point where I just try all kinds of turns and height adjustment and turn spacing. This basic foundational circuit for modern SSTC's is something I think a lot of people will surprise themselves with if they just give it a go. Playing with it enough you start to see the matrix of how all these things work. After some troubleshooting and getting a detailed idea of what each IC is supposed to be doing at any given time etc, it starts to become so much easier to figure out other similar circuits using varying topology and feedback methods. I see so many Slayer Exciter enthusiasts who are probably way closer than they think to upgrading to one of these.

@CoilLabs

2 жыл бұрын

Yeah, I considered using a current transformer instead of the antenna, but I went with the antenna simply because I knew Zach already had his working that way and I wanted to get this working quickly for the video and not have to fiddle with it too much. I'm definitely considering changing it out for a CT sometime in the future though and see if it's any more stable. It still cuts out occasionally, depending on how high I have it turned up on the variac. I totally agree, if you do it right, this circuit is pretty easy to get working. Many years before getting into KZread I had attempted to make Steve Ward's original version of this circuit and it kind of worked, but it was never very stable and I fried a lot of transistors. Being a lot more experienced now, I realize that my main issue back then was circuit layout. I didn't do it anywhere near as nicely as this one, haha. Thanks for all the great info and insights!

I'm forever wanting to try to build a DRSSTC from pre-made driver boards from China but unsure on how to hook up the primary and they offer no instructions on how to do it - that's a bummer. Anyway love your content friend.

@CoilLabs

2 жыл бұрын

I'm not the person to ask about DRSSTCs, at least not yet. Requires a lot more delicate tuning than single resonant SSTCs like this. There's not as much room to mess up as there is here, without destroying your transistors.

Awesome build man! Love the 3D printed base. Looks real sharp. I am currently working on my own design around this driver. I have a question though. You have 2 input power cords. I'm assuming one is for the voltage doubler/variac and the other is to power the main board? Do I need two or can I just use one to power everything?

@CoilLabs

2 жыл бұрын

You're right, one is for the main power going to the doubler for the half bridge and the other is to power the low voltage electronics on the board. They need to be separate, because the one for the electronics goes through a step-down transformer to 12V, gets rectified, and then regulated with a 12V and a 5V regulator on the board to power the ICs. If you turned that one down on the variac as well, you wouldn't be getting the 12V necessary to run the electronics.

@treysmith6028

2 жыл бұрын

@@CoilLabs Okay that's what I figured. Thanks for the response! I really appreciate it.😁 What if I didnt use a variac and used an on and off switch for the doubler and the low voltage circuits together? Or is it still a good idea to separate them? I'm trying to go for the cleanest setup possible.

@CoilLabs

2 жыл бұрын

You can switch them on at the same time with the same switch, that's fine. It's just if you want to be able to adjust the voltage going to the half bridge, with a variac, you need to separate them so you are still feeding the right voltage to the electronics.

00h00!

Bifilar coil tesla coil

@CoilLabs

2 жыл бұрын

Haha, so many fun ideas. I'll have to keep these in mind

I made an sstc from labcoatz KZread video At first run i got an Spark from my coil but unfortunately i forgot to ground so after some runs my igbts get explode Then i replaced new igbts zener diode but there no output I checked lV n HV output it's okay I don't know what the problem is please help me

Cool Make! looking at the 3D print files it looks like you used a 4 inch PVC tube. How tall is the tube? What are the dimensions of the top-load? Thanks

@CoilLabs

2 жыл бұрын

Yeah, it's a schedule 40, 4 inch ID PVC pipe. As I said in the video, the secondary coil is 12 inches tall and the toroid is about 10 inches overall diameter and 2.5 inches cross section diameter. The actual PVC pipe itself is slightly longer than the secondary windings, just to leave some space. I think I left about 1 inch on both the top and bottom, so the actual pipe itself was cut to 14 inches, I believe.

I built a full bridge sstc but when I put the top load the coil starts to stutter when I put more power in it. Do you have any ideas what it can be

@CoilLabs

2 жыл бұрын

Full bridge single resonant (SRSSTC), like the one in this video? Because full bridge in a SRSSTC configuration really isn't a good thing to do, because you'll be hard switching the transistors, and if your transistors lock up, you'll basically get a DC short through the primary coil. Even if that doesn't happen, probably also get poor performance, because the impedance matching between the power supply and the primary circuit is going to be bad. The reason you can do full bridge for a DRSSTC is because the tank capacitor is in series with the primary coil, so it'll block DC in case of a lockup and you're switching it based on primary current feedback (which you can do because the primary is a resonant LC circuit), not secondary feedback, like in the SRSSTC in this video, so you're making sure (as long as your driver works) to soft switch the transistors at the current zero crossing. DRSSTC primary current can get crazy high, so you'll roast your transistors if you don't ensure that. Anyway, with a SRSSTC using secondary feedback, with the antenna like this, the antenna is a really fickle way of doing the feedback. It's easy and convenient, but the placement in relation to the secondary and the length of the antenna is really crucial. Too long, and it'll stutter or not work. Too short and it'll stutter or not work. Too close to the secondary, too far from the secondary, and all variations of these things, it'll stutter or not work. I actually want to change my coil in this video over use a current transformer on the secondary, instead of the antenna to make it more reliable. I still have trouble with it sometimes. My guess as to why it changes when you put the top load on is that feedback is now a lot stronger and it's maxing out the clamping diodes that keep the feedback signal between 0-5V. Again, that's all assuming you're using an antenna. If you are using antenna feedback, try making it slightly shorter and/or move it farther away.

@alyxwildfire1848

2 жыл бұрын

@@CoilLabs thanks for your advice I replaced the antenna with a current transformer and I added a capacitor in series with the primary and I lowered the primary and now everything works way better than before

@CoilLabs

2 жыл бұрын

Cool, glad you were able to get it working better!

how many primary turns are there in your final design?

@CoilLabs

2 жыл бұрын

It ended up being 5 turns

I'm going to be making a tesla coil to power my power sphere operating on the pressure heat magnetism and electric current. I've made my own couple minerals for it with my forge and megnetic pressure. I would like to discuss the project with you and get some thoughts from some else on it

@MeI-vy2ls

2 жыл бұрын

Not a little one ether. I'm on my own land with the core being put i feet under ground and insulated

Sir please make pancake slayer exciter circuit

i built the coil but my fuses keep on blowing doy ou have any tips for trouble shooting

@CoilLabs

2 жыл бұрын

A fuse rated for how much current? Even with the inrush limiter, there is still going to be a bit of inrush current when you first turn it on, because of the big doubler/smoothing capacitors. If you're blowing large (i.e., 15-20A) fuses though, then I'd say that something could be hooked up incorrectly and there's a short circuit somewhere. Also if you didn't get the phasing of the gate drive transformer right, it could have turned both IGBTs on at the same time and that would have caused a short circuit, and likely killed the IGBTs as well.

@alyxwildfire1848

2 жыл бұрын

Thanks 👍

@alyxwildfire1848

2 жыл бұрын

@@CoilLabs it turned on but why is the interupter not working and when i looked at the circuit i ve seen that the 555 timer is wired in a bizard maner

@CoilLabs

2 жыл бұрын

The idea of this 555 timer circuit is that the duty cycle and the frequency can be controlled independently with the two potentiometers. It's essentially an extension of this circuit easyeda.com/andyfierman/Variable_duty_cycle_fixed_frequency_555_oscillator-1bc9b3f6a8cf4b3c88e5f22f6780f9c6 Not sure why it wouldn't be working for you. If you build the 555 circuit by itself, you should be able to verify that the circuit works, on its own, with an oscilloscope.

When zenneck wave??

@CoilLabs

2 жыл бұрын

It's on my list of longer-term projects. I need to do a lot more research before I'm ready to try that though.

@chrisp.coatspaintco.432

2 жыл бұрын

@@CoilLabs how can I help? I want to replace my 2.4GHz and 5GHz antenna with an antenna using a zenneck wave instead of hertz waves.