UPDATE: This instructable will not ever be finished, as I have moved back to the 555 circuit with some major changes, and I incorporated this 'able into that one. Click here to see the finished one!

Everything below is OUTDATED information, and has been modified and ported over to the older 555 version of this instructable, which is done start to finish. Please click that to see what it is capible of.

I am only leaving this one no


You've probably seen my last, failed singing arc project. I decided to give it a second attempt. Anyway, I believe I know what went wrong, which I covered in the last instructable.

So after realizing that driving an inductor or transformer in the flyback mode of operation will basicly lead to failure at higher powers, I decided it was time to change tactics. Instead of driving the flyback in it's flyback mode, I will drive it with resonance!

Step 1: Disclaimer, and dangers.

If you have not messed around with high voltages before, Please don't attempt to make this circuit. The ZVS driver I am building is easily capable of delivering 45,000 volts (45 KV) @ 5-15 mA of current. This output current can cause serious problems such as loss of muscular control, involuntary spasms, heart fibrillation, cardiac arrest, death, and perhaps worst of all, involuntary self-urination. You definitely would not want any of that!

Oh ok! So my plasma device is bs but not yours? I see. It's only other peoples ideas that are inferior. Because that's how it works in the real world, right?
Also, I did not immediately call your device BS outright, I just questioned it, asking for proof or video as to it's functioning. I'll admit I just scanned through the whole 'able w/o reading the introduction saying that is is unfinished thing, quite similar to this singing arc 'able that I sort have given up and lost interest in.
OK, you got me! However, I do have a few excuses for stretching the truth: 1st, the name is a plasma speaker is just the well known name for it, and I do strongly prefer the term &quot;singing arc&quot; As, like I say, it would be a bit of a stretch to call it a plasma generator. <br><br>2nd, Also, I am getting something that really does look like plasma, very fat whitish arcs that are extremely hot at catch nearly anything on fire, and make wires glow white hot. (Though some reason this 'able looks as though it was never finished. I will need to fix that and get video of it working when I have the time.)<br><br>And 3rd, I certainly do not claim that this is some sort of cannon, as if it is shooting fireballs or anything. That was the real thing that I called out as several others had. Although I will eat my words is I see this thing flinging balls of glowing gas all over the place, as I would have imagined from the title.
<p>I've made a variety of different 555- and TL494-based plasma speakers, but I've never seen a ZVS version. Very cool!<br><br>Making sure I understand what's happening here: the output of a Class A audio amplifier is coupled into the plasma by audio-modulated the +12V input to the center-tapped flyback used in the ZVS; this is accomplished by winding a secondary coil on the 12V+ input inductor and feeding it with the audio amplifier output?</p>
<p>Good luck,i am too trying to build this singing arc device.What do you think about the sound quality and loudness of these &quot;speakers&quot;?</p>
It is not very loud. It is simply an ineffficent class A amplifier I made only since it was made of parts I had on hand. It simply modulates the 12V input. It is not very loud, and I half expected it to not work at all. The 555 modulated version is considerably louder, but less clear and of course like I said I could not get it to work well. Although it is quiet, it is clear when the right amount of bias is placed across the input. I do need to make a better solution, if I get my hands on a proper audio amp, I will utilize it instead. Another problem is the way I modulate the input, with the inductor of the positive rail, and feeding in a single though a second winding. That winding since it has a constant DC across it, and it gets very hot.

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