[sdiy] hystheremin

[cheater cheater]

interesting sound
definitely a different kind of "cheap" than the usual run of the mill
theremin ;)

On 10/8/05, Dave Krooshof - dendriet.nl <krooshof at gmail.com> wrote:
> I wanted to make a theremin. I found simple schematics, but getting it
> stable was harder then I thought. I couldn't get the volume to work
> due to all the HF that kept leaking, which turned the LED in my vactol
> on.
> So I went for the instable version. In fact, I combined it with a
> cracklebox. It's hysterical.
>
> It uses TL082 as oscillators, 4011 NAND to make the difference tones.
> TL062 as low pass filters, a LM386 as an amp, and a trafo, so the line
> output doesn't confuse the circuit. Nothing fancy. Really noisy.
>
> Here's an mp3.
> http://www.retecool.com/audio/hystheremin-retecool.mp3
> And some photo's.
> http://retecool.com/dieper_comments.php?id=10998_0_30_0_C
>
>
> Dave
>
>