Nice work amigo!

@CoilLabs

3 жыл бұрын

Thank you!

@airzone9639

3 жыл бұрын

When since plasma channel Mexican?

@plasma555cathode7

3 жыл бұрын

@@airzone9639 everyone knows what amigo means

@airzone9639

3 жыл бұрын

@@plasma555cathode7 nobody asked

@plasma555cathode7

3 жыл бұрын

@@airzone9639 umm k uhh shut up

The perfect way to repurpose a vacuum tube

I didn't know such this exists, the lights are glowing automatically. Wonderful work.

to avoid wood splitting just drill a hole in them first

@flaplaya

2 жыл бұрын

Hahaha

Nice build 😁 love it!!!

Well done! That being said you trigger my OCD. Thanks for posting the video, it's definitely encouraging and inspiring. I ordered a Soviet GU81M off ebay today. I was (and still am) planning a Synchronous Rotary Spark Gap Tesla Coil, but the vacuum tube tesla coil has been sucking me in lately.

@MrElapid

3 ай бұрын

Same happened to me. I just finished one with 2 572B triode tubes. But that tube is huge! Bet it can handle 4+KV on the plate, mine can't (I think ). The constant "fistful of swords" discharge is beautiful with these, even better with metal salts like Strontium Chloride sprinkled on top. You'll love the thing!

smaller channels like this have the best content by far stay true to yourself hope your channel grows

@CoilLabs

2 жыл бұрын

Thank you!

So awesome!

Wow great stuff, dude. Subbed

Very nicely done! Rocking the hair!

Underappreciated. Lot of work with humor... Not an enormous market of us tho. Very nice build thanks for sharing...

@CoilLabs

2 жыл бұрын

Thank you, I appreciate that!

Excellent video! I subscribed.

the 833A, must be refrigerated with a little of cool air, it will be work properly and prevent damage, it works hot, but not too hot. Nice work this tube brings me a lot of nostalgics remembers... when I worked in Radio Maldonado in Uruguay THANKS

@CoilLabs

3 жыл бұрын

Cool stuff! I do not have any background in radio and tubes, myself, so it's really interesting to me to learn about. And yeah, I definitely ran the tube why too hot in this video, haha. Cooling would definitely help, but I'm also just trying to drive too power hungry of a Tesla coil for what that tube is rated for. Much more powerful VTTC with a 7704 tube in the works soon!

hey man i realy like youre work.

I just started watching this but your opening pic. looks like LOL Ian Anderson on Jethro Tull's "War Child" album. That's one hefty tube! I just have 2 572B triodes in my VTTC. You look like you're having a good time there.

love it！

Que INCRÍVEL ❤️

I've been planning on building a SSTC But after finding out how cool vacuum tubes are I think I'm gonna try using a thyratron

@CoilLabs

2 жыл бұрын

Vacuum tube coils are definitely my favorite. They're quiet and the sword-like sparks are really different and cool.

sweet, Ill be making one of these to apply to my magnifier system!

@CoilLabs

2 жыл бұрын

Are magnifier VTTCs a thing? I don't think I've seen anything like that before.

I've got a 5kw 7kv Eimac 3cx5000a7 tube and I definitely want to try this!

@CoilLabs

3 жыл бұрын

Wow I'm jealous, that looks like a nice tube, haha. You can do way more than this with a tube like that. I have what's called a 7704 /QBL5-4000 tube that's in a similar ballpark that I'll be making a big VTTC with here sometime soon.

@NerdlabsSci

3 жыл бұрын

@@CoilLabs How many mots can I hook up to the Eimac tube?

@CoilLabs

3 жыл бұрын

Honestly, I'd start with just one to get it working first and not risk blowing stuff up while you're trying to tune it. But once you get it working like that, here's how to understand what you can use. Every MOT is different, but typically they output around 2100VAC. And the way you use them in a VTTC is with the capacitor-diode level shifter / voltage doubler (see the schematics in the links to Steve Ward's website in the description), so it becomes 0 to 2*V_peak, instead of -V_peak to +V_peak. V_peak is sqrt(2)*V_rms, so sqrt(2)*2100 is ~2969V, so just round it up to 3kV. If your tube says it can handle 7kV then you could put two MOTs in series and then level shift to get 6kV. Make sure your capacitors (probably need a few on series) and diodes can handle the volts and amps expected here though. Microwave oven diodes are usually only rated for 300mA or 500mA, so you'll need a bunch in parallel to handle the current expected here. 5kW is a lot of power (way more than a normal wall socket will deliver), so be careful here.

Wow that’s a good tesla coil

New sub ❤️

Gostei do teu conteúdo parabéns 👍

Sir what are you used upon the Tesla coil. Great work sir

yes i think the radio that used this vacum tube was very "small"

What would happen if you were to reduce the number of primary and feedback windings by half? I’ve been wanting to do this to my 811A tube coil. I’m hoping to make the discharge less “hot”.

You should make a video making one of the vacume tubes

@CoilLabs

2 жыл бұрын

Haha damn, I'm not sure I have the tools or the skill to do that. Blowing glass is challenging enough on its own, but the hard part with tubes is getting the seals to, well... seal. Getting that glass-metal interface, where the electrodes go through the glass, to seal good enough to hold a vacuum is challenging, even if you're experienced at blowing glass, which I've never done before.

where do you purchase those sealed tubes of argon, etc

@CoilLabs

3 жыл бұрын

I found them on eBay. Just search for something like "noble gases in tubes", "noble gas ampoules", etc

Do I have to use door knob caps?

now just need to build a staccato interrupter for it

excelente canal amigo tienes unos muy buenos videos saludos amigo

@CoilLabs

3 жыл бұрын

¡Muchas gracias!

Die Musik im Hintergrund, ist das die 6. Symphonie vom Tschaikowsky? seihe 5:19

Does it matter how many turns are in the feedback coil? If so, how do you determine how many turns are needed? Is JAVATC suitable for designing a VTTC?

@CoilLabs

3 жыл бұрын

The number of turns of the feedback coil is important, because it affects the voltage on the grid of the tube. Too few turns and you don't get a strong enough feedback signal and too many turns and you risk overvolting the grid of the tube. I've not seen much in the way of theory for choosing the number of turns. It's all very dependent on how close the feedback coil is located to the primary coil, the diameter of the coils, and the values of the grid leak resistor and capacitor, in addition to the number of turns. Most people tend to use about 20-25 turns, from what I've seen though. I only had about 8-10 turns in what you see in this video, but I later rewound it to 20 turns and it definitely improved the performance of the coil. So 8-10 still worked, but was definitely suboptimal in my case. I've never used JAVATC, so I can't comment there. One of the best resources I know of for VTTC design is Steve Ward's website. stevehv.4hv.org/VTTCindex.htm

@theplasmaprince8651

3 жыл бұрын

@@CoilLabs Many thanks Coil Labs, this was very helpful!

Who needs mosfets when vacuum tubes exist lol

@CoilLabs

2 жыл бұрын

Tubes are absolutely more fun!

The link in the description,it doesn’t work Can you tell me the specifications and quantity of the materials?

3:08 Monster Kill🤣🤣🤣

I was wondering, why do VTTC require so many turns on the primary coil compared to DRSSTC/SSTC? The coils that i used for SSTC have only have 5 turns on the primary. Some have 10.

@CoilLabs

3 жыл бұрын

Essentially the reason is that rather than "opening the flood gates" and dumping large current pulses through the primary LC circuit, the VTTC just keeps a moderately high average current through the primary. VTTC operates in more of a "continuous wave" mode. So since the max current isn't as high, you need higher coupling between the primary and secondary to get enough energy transfer. Steve Ward explains this much better than I can: www.stevehv.4hv.org/VTTCfaq.htm

@Tesdraline

3 жыл бұрын

@@CoilLabs Thanks for the info! :)

Your poor tube :(. Quit red plating it and get a multi kW one! I can point you to a $100 3kW one on Ebay that needs 200cfm of forced air cooling (this tube might be especially good for you since you are suppling with a TAH-004A, so can give it some good current at lower voltage, as the tube's max ratings are 7A 5kV, so relatively low voltage high amperage). Best bet is to look around for a better deal on Ebay though.

@vdekjEE

3 жыл бұрын

BTW, I'm curious what grid capacitance/resistance you were running it at. If you increase the resistance or capacitance you can make the tube stay off for longer and it won't heat up as much.

@CoilLabs

3 жыл бұрын

Haha, yeah I wasn't very nice to the tube, was I? Interesting, what style of tube is that you are talking about? Also, to answer your other question, I have a 5k resistor and 2nF cap on the grid. That's a good point about increasing those values to keep it off longer. I need to get the parts for the Staccato controller at some point too, so I can duty cycle it in sync with the line frequency. I based this off of one of Steve Ward's VTTC designs and he says on his website that he ran this one exclusively with the Staccato, because the tube plate would always get red hot otherwise. I can see why now. Thanks for the info and the question!

@paradox9644

3 жыл бұрын

@@CoilLabs www.ebay.com/itm/6076-RCA-Amplifier-Vacuum-Tube-Branded/184423136354? Get this! Read it's datasheet! I got the 6076A and i'm currently building a 2kW VTTC!!! Best of luck to you! It's a tetrode tube rated at 3kW with a screen and a grid.

@vdekjEE

3 жыл бұрын

@@CoilLabs Sure! Here's the tube I was talking about. www.ebay.com/itm/184423136354 It does need a lot of airflow though and it isn't the *best* deal, so you should consider getting a different tube. If you do decide to get this, make sure to offer the buyer $80 or $90 You should join styropyro's discord! discord.gg/hVZMcWT One of us is building a GU-39B VTTC, one of us is making a GU-81M VTTC, and 2 of us are making 6076 VTTCs.

@CoilLabs

3 жыл бұрын

@@paradox9644 Thanks! I'm not familiar with this tube, so I'll have to look into it. Two of you sent me this same listing though, so it must be good, haha! 2 kW VTTC sounds awesome, I'd love to see it!

Why didn't the H2 explode? Because of too low pressure of the gas?

@CoilLabs

3 жыл бұрын

The gasses in those tubes are of high purity. There's no measurable amount of oxygen inside for the hydrogen to react with.

Link to buy the gas tube pls

@CoilLabs

3 жыл бұрын

I got those tubes on eBay years ago. Just search for "noble gases in ampoules" or something like that and you should find several listings like those.

👏👏👏👏👏

We want to make this project, how to help me please send me information link

🎉 Is incredible, build NIKOLA TESLA coil is not a small thing , beautifulll .

very cool-esp. the different gases in the tubes:-) but I just finished a book about health effects from electricity! maybe you should read it -Arthur Firstenburg The Invisible Rainbow

Minus 1 point for not making krypton glow green.

ADPH. Always Drill Pilot Holes.

did you actually get it to work the first time?

@CoilLabs

2 жыл бұрын

Yeah it worked on the first try. I purposely made the parameters of this build very similar to Steve Ward's 833A VTTC in the hope that it would work without too much trouble. Later though, I added more feedback turns and that improved the output a bit.

@NerdlabsSci

2 жыл бұрын

@@CoilLabs wow.

@NerdlabsSci

2 жыл бұрын

I am actually building a VTTC using steve ward's circuit and i was wondering how you grounded the coil(did you use earth ground, house ground or a counterpoise).

@CoilLabs

2 жыл бұрын

Simply for convenience, I used a counterpoise on the concrete floor in my workshop. Was just a decent size piece of sheet metal. Doing it again, I'd prefer a dedicated RF ground though. You can probably get away with using your mains ground for a coil like this, but it's your choice if you want to take that risk. Most likely everything will be fine. If you start getting into higher power coils (i.e., multiple kW) or high frequency coils (i.e., 1MHz and up) then I would definitely use a dedicated RF ground.

I love your Video, you have pretty projects on your channel ;) Maybe we can make a collaboration in future :) Best regards, Leon

@CoilLabs

3 жыл бұрын

Thank you! That would be a lot of fun, yes!

@Teslaundmehr

3 жыл бұрын

@@CoilLabs perfect !

If you had a mixrue of hydogen and oxygen gas in a sealed tube and brought it near a Tesla coil would it explode.

@CoilLabs

3 жыл бұрын

It's possible, but depends on a lot of factors. Basically comes down to if the energy being dissipated in the tube due to the high voltage is at least as large as the activation energy of the hydrogen-oxygen combustion reaction. Those little tubes are at low pressure so the gas will ionize like that more easily in the presence of high voltage, so there's actually not that much gas in them. So it could technically trigger the combustion reaction, but not have enough energy to break the glass, because there's not actually that much gas in there to react. I'm not a chemist, so any deeper understanding of this is a bit beyond my knowledge.

I think the plate of the tube is fried

toob