Re: Singing like a banshee
On Fri, 12 Jul 1996 22:25:33 -0600, Tesla List
<tesla-at-poodle.pupman-dot-com>, you wrote:
>>From dwt-at-efn-dot-orgFri Jul 12 22:07:49 1996
>Date: Fri, 12 Jul 1996 19:44:11 -0700
>From: David Trimmell <dwt-at-efn-dot-org>
>Subject: Re: Singing like a banshee
>"The successful voice modulation of a high-powered spark gap
>oscillator powered Tesla coil is a back burner project I've been
>working on. If you listen to the first vocals from the Black Sabath
>song Iron Man, and imagine this acoustical voice energy coming entirely
>discharge of a medium-large coil you have an idea of what I expect to
>accomplish. Again, this will not be new, but IT WILL be fun!"
>Hello, that's something I really want to do at some point (By next
>summer at least!). But, I haven't a clew about how to start with a
>small to medium sized coil! Could you or someone else give me some
>pointers? Has anybody on this group done such a thing with a disruptive
>discharge coil? Voice modulation, even low quality, would indeed be
>cool! I would be grateful for any replies.
> Thanks all.
>David Trimmell <dwt-at-efn-dot-org>
I just came across this url during an Alta vista search:
> Radioscientist ON-LINE. The Sounds of a Spark Transmitter:
> Telegraphy and Telephony. John S Belrose Radio
> Sciences Communications Research Centre Ottawa...
> http://www.sns.it/~cerri/spark.html - size 16K - 9 Apr 95
[ I'm going to put this in the safety FAQ if/when I get to that section.
It'll go under the "legal safety" section --
When I first started getting into tesla coils, I called the FCC. The guy
didn't know much about them, but the one point he made that was clear
was that modulating a coil (and thus any output RF waves) is illegal.
If you are going to do this experiment, I suggest constructing a faraday
cage for your apparatus. -- Chip ]