I want a 15kV 30mA xformer. Have looked on ebay, no luck.
Preferably in relation to tesla coils, because I found a shop willing to sell me a 15kv 60mA NST for $55 (no GFCI obviously). I also have a flyback I scavenged out of a CRT TV that I'm driving with a ballast I found on Amazon for $12.
They both seem to produce the same arc length (from the videos I've seen it looks like the NST would produce around the same size arcs), so I'm wondering if I can just save the $55 and just use the flyback instead.
Any help would be appreciated, thanks!
Arc size: https://imgur.com/a/ox7XZnO
I have an AC line filter on the input of my NST, and was planning on hooking it up to the spark gap and MMC with no terry filter on the NST output. How dangerous would that be? Do I really need to use a filter between the NST and primary to keep the NST from frying?
I was into this hobby a long time ago but am no longer pursuing building tesla coils. All I want is for my 15kV neon sign transformer and large (~2ft long) secondary coil to be used. I really need to get rid of this stuff, but really dont want to throw it out. I would appreciate help with shopping cost, but otherwise don't need to be paid. DM if interested.
Edit: images transformer
I'm looking for an old AC neon sign transformer, for experiments, Jacob's Ladder, etc. It doesn't have to be really old, just old as in not in use, does anyone know who would have these?
Ok so recently I started buying parts for my first tesla coil. As I am fairly new to it I had done my fair bit of research on how to use NST's. In fact I already made a Jacob's ladder I was going to hook up to the NST when it would arrive. So I tried hooking it up and I heard a click. This was the first test with the circuit on the lid inserted in the NST. So I tried not using the circuit and see if anything happened, and this time nothing happened at all. Therefore I figured that the lugs have connections to the primary coil. And so I tried bypassing the circuit on the lid (which I assume to be a circuit breaker). I bypassed it with some copper wires. Unfortunately my jacob's ladder didn't spark. (And no it has nothing to do with the conductivity or air gap) I made the air gap so small that 9kV should definetely cross it, but unfortunately it didn't. Instead the breaker in my house switched.
This is a video from somebody with the exact same transformer and problem as me:https://www.youtube.com/watch?v=piH44ohowyE
It's a 9kV 50mA transformer from a company called Ricci. This is where you can buy them: http://www.signbuyer.co.uk/ricci-neon-transformer-2363-p.asp
This is the website of the guy who had the same problem as me: http://www.instructables.com/topics/9kV-50mA-tesla-coil-NST-question-Why-does-the-cir/
Here are several pictures: https://drive.google.com/file/d/1iqO6h-CVIbfzkSTnHjoKj6f3gsncSN-G/view https://drive.google.com/file/d/1FDnTUhpjXbG4zioALgLGs5QEt9SBX7T6/view https://drive.google.com/file/d/1Ac22t6eqUkpUcyrAhuN4EmSKyd6ZI4gn/view
I hope somebody knows something. Thanks and have a nice day!
I'm in the market for a NST but I can't for the life of me find a store that's sells it. I can get one online but it would be helpful to have it sooner rather than later. If anyone knows of a electronics parts store that may sell one please let me know, preferably in webster, penfield, or fairport areas, but all recommendations welcome. Thanks in advance.
I have had my eyes peeled for a cheap neon sign transformer but I can't seem to find one anywhere in this city. I don't suppose anyone here has an old one lying around or might know of a good neon sign shop that may be willing to sell me an affordable one.
If not, oh well...
Got a second-hand Neon Sign Transformer, a F.A.R.T RESINBLOCK 2000, for a tesla coil build.
My question: is the ground connection on the transformer the center-tap on the secondary side or does it serve another purpose?
See picture for visual: http://imgur.com/Bs6whFw
Hey guys, I've got a woodworking/electronics project in mind but I need a neon sign transformer in order to do it. Has anyone got one I can pull apart or knows where to actually source one?
Hi /r/Favors,
I am interested in trying some wood Lichtenberg art. It's done using a Neon Sign Transformer and electrodes to pass a current through electrodes creating the signature lightning shaped burns. I am just wondering if anyone has an old one they're not using or maybe has one and no long uses it and would be willing to do me a favor and let me use it.
Thanks.
Both combatants have everything in their arsenal available
Hi, I am working on an AC dimmer project using the following circuit:
https://preview.redd.it/xvrzpqr3lem71.jpg?width=601&format=pjpg&auto=webp&s=ef390155a3f65c077a4dc4eccf1d4d8208fa9d82
This circuit functions by detecting zero crossings in the AC power input via the LTV814 optocoupler connected to a pull-up input pin on my micrcontroller. The micro then turns on the power switch triac after a timed delay from the zero crossing to achieve pwm style dimming and provide variable amounts of power to the load (done by writing the pin connected to the MOC3052 high until the next zero crossing).
I have noticed when using this circuit on a piece of neon (dimming the ac power input of the neon transformer) that I get an uneven curve to the dimming. There is a smooth fade for most of the range, but then I get a small spike in brightness around the point where it completely fades out. Please see the example below:
https://i.redd.it/ax6h0g17lem71.gif
Any idea what is going on here? I realize this is probably due to the fact that the neon transformer is an inductive device which can present challenges for dimmer circuitry, but I found this circuit specifically when doing research on dimmers one could use with inductive loads. Overall my project works quite well, and this isn't the biggest deal, but I'd like to be able to understand what's going on here and potentially have some control over it if possible.
Thanks!
