Author Topic: musical tesla coils  (Read 3295 times)

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Offline paulstreatsTopic starter

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musical tesla coils
« on: March 08, 2008, 03:35:40 AM »
I know theyre not robot related but theyre still cool anyway.

The music you hear is generated solely by the tesla coils, there are no speakers at all. (for all those people wondering what to do with that tesla coil they have lying around ;D)

[youtube]http://www.youtube.com/watch?v=Opf5jIukSBM[/youtube]

The same thing from a different angle

[youtube]http://www.youtube.com/watch?v=JScc2plLQOI[/youtube]

Offline paulstreatsTopic starter

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Re: musical tesla coils
« Reply #1 on: March 08, 2008, 03:36:38 AM »
From the sept 2007 teslathon (Lightning on the Lawn). The music is dance of the sugar plum fairies

Heres the link for the 10 minute video of these 2 coils going through a much larger repertoire including the super mario brothers theme tune. I just posted the link because it drops too many frames playing through other sites to be worthwhile

« Last Edit: March 08, 2008, 03:57:55 AM by paulstreats »

Offline ScorpIon

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Re: musical tesla coils
« Reply #2 on: March 08, 2008, 04:13:33 AM »
The way techno/electronica is meant to be played?

Awesome.

Offline airman00

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Re: musical tesla coils
« Reply #3 on: March 08, 2008, 05:53:01 PM »
lol



sounds like good music for when our robots take over the world .............. :P


but seriously, that is amazing!
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Offline goatfish

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Re: musical tesla coils
« Reply #4 on: March 13, 2008, 04:10:58 AM »
lol,i wanna use that for an intro for a song i could write(im a muso) ;D ;)

Offline TrickyNekro

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Re: musical tesla coils
« Reply #5 on: March 16, 2008, 04:25:43 PM »
I have heard many Mario and techno  stuff but this is unbeatable.
[youtube=500,400]7xnLqSGtkOk[/youtube]

The bad thing however in singing Tesla coils and generally Tesla coils is that the spark combines oxygen and produces ozone which is toxic and poisonous for the human!!! I plan to build on tho!!! The have fun and Tesla always fascinated me!!!
For whom the interrupts toll...


P.S. I've been inactive for almost a year... Don't give promises but I'll try to complete my tutorials. I'll let you know when..

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Offline airman00

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Re: musical tesla coils
« Reply #6 on: March 16, 2008, 06:25:32 PM »
I have heard many Mario and techno  stuff but this is unbeatable.
[youtube=500,400]7xnLqSGtkOk[/youtube]

The bad thing however in singing Tesla coils and generally Tesla coils is that the spark combines oxygen and produces ozone which is toxic and poisonous for the human!!! I plan to build on tho!!! The have fun and Tesla always fascinated me!!!
wait

that song that is played is made by the tesla coil??? or is it some guy in the background with a speaker?
Check out the Roboduino, Arduino-compatible board!


Link: http://curiousinventor.com/kits/roboduino

www.Narobo.com

Offline Tsukubadaisei

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Re: musical tesla coils
« Reply #7 on: March 16, 2008, 10:46:46 PM »
The bad thing however in singing Tesla coils and generally Tesla coils is that the spark combines oxygen and produces ozone which is toxic and poisonous for the human!!! I plan to build on tho!!! The have fun and Tesla always fascinated me!!!

They also produce x-rays. :(
A.I.(yes those are my initials)

Offline HDL_CinC_Dragon

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Re: musical tesla coils
« Reply #8 on: March 16, 2008, 10:58:04 PM »
wait

that song that is played is made by the tesla coil??? or is it some guy in the background with a speaker?
no :) It would require many different tesla coils to produce even just a voice. If you look at a Fourier Frequency Time graph of a persons voice, there are many many different frequencies going on at once. I have a theory thats its possible but extremely difficult. What was going on here was he was probably using the frequency of the song to drive the Tesla coil
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Offline TrickyNekro

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Re: musical tesla coils
« Reply #9 on: March 17, 2008, 12:40:07 AM »
In fact this IS possible with a solid state tesla... I don't know how but this guy explains it in his home page...

Have a look both here...
[youtube]CdHAEeico5A[/youtube]

Sound is a distortion. The Tesla coil doesn't need to be tuned to only one frequency. As he said, this Tesla coil works as a AM transmitter.
I know more but have a look at his page. find it thru youtube.
« Last Edit: March 17, 2008, 12:52:14 AM by TrickyNekro »
For whom the interrupts toll...


P.S. I've been inactive for almost a year... Don't give promises but I'll try to complete my tutorials. I'll let you know when..

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Offline Tsukubadaisei

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Re: musical tesla coils
« Reply #10 on: March 18, 2008, 04:30:44 AM »
The tesla coils just have to compress the air the similarly to the magnets in an headphone. With only one magnet you can produce any sound. The same can apply to the coil. But dont ask me how to do that though.
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Offline TrickyNekro

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Re: musical tesla coils
« Reply #11 on: March 18, 2008, 06:37:39 AM »
The tesla coils just have to compress the air the similarly to the magnets in an headphone. With only one magnet you can produce any sound. The same can apply to the coil. But dont ask me how to do that though.


You are either bored to explain eee :D :D :D :D ::) ::) ::) ::)

And cause I don't like people saying that this is not possible (generally speaking) I'll give an idea on how this is done.
In a AM transmitter we have a carrier wave. The carrier wave is always transmitter in one fixed frequency. This means we have a distortion in a certain frequency, but me can also vary amplitude. For example:

x = A*sin(ωt + θ).
A = Amplitude
ω = radial speed
t = time
θ = starting phase.
Ignore θ (θ = 0) and let's have a look at the rest. The carrier wave frequency in given by: f = ω/2π
Let's say freq is at 200/π Hz then ω = 400 rad/s and we are here:
x = A*sin400t
The graphics are like this:
http://upload.wikimedia.org/wikipedia/commons/3/38/Sine_cosine_plot.svg
This is the carrier wave!!!
Now pay attention.
If we vary A which is the Amplitude, we have a second distortion.
In the Tesla Coil occasion we have a simple harmonic distortion in order to have AC current and the spark and a second random distortion which is the sound!!!
This is Amplitude Modulation or AM for more common!!!

Hope that helped!!!
Cheers!!!
« Last Edit: March 18, 2008, 07:12:15 AM by TrickyNekro »
For whom the interrupts toll...


P.S. I've been inactive for almost a year... Don't give promises but I'll try to complete my tutorials. I'll let you know when..

Cheers!

Offline Tsukubadaisei

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Re: musical tesla coils
« Reply #12 on: March 19, 2008, 03:30:59 AM »
[
x = A*sin(ωt + θ).
A = Amplitude
ω = radial speed
t = time
θ = starting phase.


But this is just a single sound. If you want to make a melody you have to change ω and sum all the x's. That would be a Fourier sum I believe, just like those ones used for Fourier transformations.
A.I.(yes those are my initials)

Offline TrickyNekro

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Re: musical tesla coils
« Reply #13 on: March 19, 2008, 08:51:43 AM »
Well since I'm only 17, I don't know Fourier transformations, I'll learn them in a year of so. But I know what you are talking about.
Well my point is not that we have two waves combined with each other, so we don't need Fourier.
We have a Simple Harmonic Distortion, a carrier wave, a single sound to produce the AC, the spark etc.
And what we charge is not the frequency of the carrier wave but the Amplitude of the carrier wave.
The sound you are talking about is the vary of the Amplitude.
For example:
χ = Α*cos(2πt)*sin(200πt)
The main sound produced by this equation is f1 = 100Hz
By the amplitude of this sound changes in a sequence of f2 = 1Hz
This typically means what will fade out  two times a second.
In the Tesla Coil if the sound amplitude varies as the song frequency we have music through the Tesla...
I just try to explain that we produce music based on a stable frequency sound. We don't have waves messing with each other!!!
For whom the interrupts toll...


P.S. I've been inactive for almost a year... Don't give promises but I'll try to complete my tutorials. I'll let you know when..

Cheers!

 


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