Tesla Coil Audio Redeux

So I’ve carried out further testing by removing a good portion of the bass present in the audio signal to great effect. I got Daft Punk’s Aerodynamic, and Axel F (original) and they both turned out pretty good.

Daft Punk – Aerodynamic

Axel F

Audio Modulated Tesla Coil part 2!

So over the last few days I’ve been busting my balls getting the modulator complete, a few hours before midnight I met my personal deadline of plugging in the modulator board to the main circuit board. The result is a half-passable audio modulation. My future plan is to replace the entire mainboard with a PLL circuit, fullbridge, and current transformer feedback giving much better audio quality.

The modulator is a bit of a rats nest, I’d mount all the pots to a board and have fewer connectors, but I don’t have the ability to drill super-accurate holes into heavy steel (thus any board would be useless).

The plugin modulator board

There is also video! For anyone with time I’d suggest taking a look at my Youtube channel, I have more videos there, but for anyone that wants the quick sample, look below.

Note: audio quality has since been improved from the time of the filming as the enclosure was not closed (and therefore not shielded) at the time of filming.

Audio Modulated SSTC

So a project of mine that has been ‘in limbo’ for quite some time is finally starting to come to fruition. My intention is to convert my current SSTC to an audio modulated SSTC, I’ve already done up schematics for the modulator and receiver, and have acquired most of the parts needed.

Below you can see the first and second revisions of the modulator box’s front panel, since there is too much to cram onto one small panel, I’m going to have to use both sides, but on the whole it should be an efficient use of space.

I’ll post updates over the next 2-3 weeks (my winter break) as I make some progress on this, so stay tuned.

Ever so busy…

Well, as usual I vanish off the face of the internets due to being too busy, but at least I have plenty of juicy things to show you guys. I’ve finished off my solid state tesla coil (SSTC), made most of my spectrum analyzer, and been doing leatherworking on a Halloween costume. This post is very image intensive so for the sake of anyone with 56k I’m going to separate it from the main page.