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MKolb
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Singing Tesla Coils
MKolb   9/24/2013 4:44:29 PM
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When I saw the title of the article, I immediately thought of the 2010 movie, "The Sorcerer's Apprentice" and the singing tesla coils in his lab playing music for his girlfriend. 

Caleb Kraft
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Re: Singing Tesla Coils
Caleb Kraft   9/24/2013 4:46:56 PM
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Yep, there's also a band that uses huge ones. They are named Arc Attack, and you can see a video of them here. 

http://www.youtube.com/watch?v=PdrqdW4Miao


Wilton.Helm
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Tesla transducer
Wilton.Helm   9/24/2013 5:14:27 PM
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The videos are interesting and the music is impressive considering the way it is being converted to sound.

It reminds me of an article tha was in Popular Electronics (I belive) about 40 years ago.  Someone put carbon electrodes in the flame of an oxycetalene welding torch and connected them to the outpot of an audio amplifier (possibly with DC bias voltage added) to use the flame as a transducer.  I badly wanted to duplicate the experiment, but alas was a poor teenager without a power amplifier, let alone a welding torch, so can't comment on the quality of the sound produced

Caleb Kraft
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Re: Tesla transducer
Caleb Kraft   9/24/2013 5:15:57 PM
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Man, that sounds so cool... er, hot. 

Rodney0
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Singing Tesla Coil & Kits
Rodney0   9/27/2013 3:06:04 PM
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When I saw this, it reminded me of the Flame Speakers that were in a NASA

plasma physics project in the late 60s and early 70s. I won the local science fair

top prizes and honarable mention American Patent Law association 1970 in

Baltimore, MD. They are all listed in Research Engineering online. Check it out.

DrFPGA
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Giant Teslas
DrFPGA   9/27/2013 4:59:03 PM
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Yep- have seen giant teslas singing at the Oakland 'pre-burning man' festival put on by the Crucible at their Fire Arts festival. Was very impressive. Not as impressive as the propane powered flame blaster however...

JackTesla
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Technology is not new or innovative
JackTesla   11/1/2013 8:10:58 AM
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Honestly, this isn't new technology at all.  Amateurs have been doing POLYPHONIC music reproduction with Tesla coils for almost 10 years now.  Seems like it only really makes news when students at prestigiuos MIT do it that their efforts get rewarded.

 

Point is, that this is nothing new.  And if you really want to look at the history of this particular design, it was copied directly from another one board DRSSTC kit that another company, Eastern Voltage Research, has been selling for quite a number of years before OneTesla popped on the scene.  In the original write-up, the designer even states, "Inspired by Eastern Voltage Research's microBrute, I decided to route a DRSSTC onto a 4"x6" board. "

http://www.easternvoltageresearch.com/drsstc_microbrute.html

You could say these individuals just copied this design and repackaged it as their own.  Hardly worth commenting on as if it was cutting edge technology.

 

Jack

 

 

Caleb Kraft
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Re: Technology is not new or innovative
Caleb Kraft   11/1/2013 9:39:38 AM
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Nobody is saying that modulated coils is a new thing. However, a $300 kit that a hobbyist can purchase is very new! Well, it is interesting if nothing else. 

JackTesla
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Re: Technology is not new or innovative
JackTesla   11/1/2013 12:27:54 PM
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Caleb,


Yes, very true indeed!  Of course, you and I know that these students are not making any money on this, especially if they have liability insurance, which i'm pretty sure they don't.  No underwriter in the world would offer insurance for a kit like this.

 

Anyways, regardless, i do commend them for their work and it is a very good learning lesson for them.

 

Of course, Eastern Voltage Research put up a very good answer to their crowdsourcing effort by doing their own crowdsourcing funded Tesla Coil.  Looks pretty sweet, but looks like they aren't making any money on these either based on their prices.

 

http://www.youtube.com/watch?v=ivMkNVQvHXM

 

Jack

Stephen_M
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MIDI interrupter less useful than MIDI interpreter
Stephen_M   11/20/2013 7:25:55 PM
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The best that I can tell, "All components for the MIDI interrupter (which allows it to play music)" would be a device to keep MIDI from playing.


A MIDI Interpreter would be a device that converts MIDI which would allow it to play music.

Caleb Kraft
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Re: MIDI interrupter less useful than MIDI interpreter
Caleb Kraft   11/20/2013 9:55:27 PM
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I assumed they used the term interrupter meaning that it shuts off the coil at the correct frequency. 

 

you can see that they call it an interrupter on their site, that wasn't a typo. http://onetesla.com/index.php/products/kits.html 

Stephen_M
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Re: MIDI interrupter less useful than MIDI interpreter
Stephen_M   11/21/2013 12:11:45 PM
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I think spell check sabotaged them.



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