The complete prototype circuit is shown here built on a single PCB. The reflector is made from PVC pipe with a rear mirror. EHT now slightly lower and the gap size has been reduced. Track is 'Hold Me Now' from the Thompson Twins - chosen purely for it's good dynamic range, vocals & clever percussion ! Let me know if would like to see & hear any particular song - see what I can do ;)
Here's an extract from LTE / Dream Theater's Acid Rain.
The arc is powered up slowly, to demonstrate that it is
indeed the plasma producing the music you can hear.
A few of you had mentioned you might like to hear a DT / LTE track - here it is :)
Connected the RGB LED's to a simple binary ripple counter. Some of the filtered audio is fed to the clock input, to create a sound-to-light sequencing effect. Looks really nice in the dark - It's a pity the camera doesn't pick up the vivid intensity of the colours.
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