Happy Holidays From Geek Group 2011 #5: Angels We Have Heard On High

Merry Christmas from The Geek Group!

Angels We Have Heard On High

Rendered in four part harmony from a single solid state Tesla coil. All the sound heard is being generated from the electrical arc. A small ion motor, shaped like a Christmas Tree, is riding on top of the coil.

This Solid State Tesla Coil (SSTC) was produced by Steve Ward and provided to The Geek Group some years ago. Recently it's been used as a test bed for improving multi-voice music reproduction from a single coil. The schematic for Steve's original SSTC can be found here:

http://stevehv.4hv.org/SSTC5/miniSSTCfnlsch.JPG

We've replaced the 555 interrupter circuit with an optically coupled Arduino Uno. The music being played is transcribed by hand from public domain sheet music. The Uno is equipped with a uSD shield and the music is stored on a uSD card. (The optocoupler is mounted on the uSD shield's prototyping area) The notes to be played are read from the uSD card and the waveform is constructed by the software in real time.

Category:

Nonprofits & Activism

Tags:

• Musical Tesla Coil
• Christmas
• Xmas
• Carol
• SSTC
• CW continuous wave
• Steve Ward
• Four Part Harmony
• ASTB
• Christmas tree ion motor
• polyphony
• thegeekgroup
• the geek group
• chris boden
• paul kidwell

[miki49com]

Love those Plasma Speakers!! Thanks

[dash8brj]

thats cute, now blow up some christmas baubles with thumper :)

happy christmas guys :)

[mrP1n34PPL3]

this sounds very loud, I like it :D

[motorbikesrule125]

Great ones again

[OrciTheOrca]

Merry Christmas to everyone at The Geek Group! <3