Re: SSG idle thought

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>

Hi Shad,

This would actually be a very simple thing.  Simply feeding the audio into the
controller with a few tiny circuit changes would give 0 to 100kHz.  Heating and
charging the primary cap would be a concern and the coil woild have to be a big
smaller as a result, but the control system itself is easily capabable of this.

Cheers,

        Terry

At 10:31 AM 3/27/2001 -0500, you wrote: 
>
>     Hi All, Terry F, 
>  
>   Just an idle thought as I was going to sleep last night....
>  
>  Since the IGBT's will allow precise control of the coil's firing, why not
> run the tank circuit on DC with a small tank cap (1nf or so), and trigger the
> gap with a signal from an audio source?  I can see the tank cap and probably
> the SSG would get cranky at a few Khz breakrate, but with a small-capacitance
> tank cap on a relatively small coil (say a 9/30), if you could keep the
> current and heating under control, you'd have one wicked plasma tweeter.  
> Figuring the range for human voices is about 200hz-2khz, triggering it from a
> microphone would make a pretty impressive halloween prop.   The tiny
> capacitance would  lend itself well to a physically small coil, as well as
> keep the current down.  While I don't know if this will work, or the volume
> (many years ago I saw a demonstration for a toob powered plasma tweeter vs
> electrostatic speakers, both could hit incredibly clear highs with
> ear-splitting volume).  Sounds worth a look to me.
>  
>  Ideas?  Comments?  What do you think Terry?
>  
>                      Just another idea from Outside The Box(tm)  ;)
>                                                                          
>       Shad