Re: VTTC provisional results

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

Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 3/21/01 10:32:15 AM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:

>  You are referring to AC operation do you? As the final goal is 
>  audio modulation I need to stuck with DC.

Herwig,

Yes, AC,  but I forgot your goal was audio modulation.  In that
case forget everything I said about single legs, and AC, etc.
3 phase is best for what you're doing.

I would just say that DC operation of a tube coil demands a
tremendous amount of power, and my guess is that your 
system is near-optimal now.  If the tubes are getting red, then
the only way to get longer sparks is to add more tubes and
more power input.
 
>  But I would 
>  like to have a small ballast e.g. a loading inductance between the 
>  rectifier and the loading capacitor in order to protect the stack of 
>  diodes from being fried in case of a flashover. Been there, done that 
>   :-((  Up to now I am using a 10 Ohm/10 kV current limiting 
>  resistor, which is 10" long.

I see what you're saying.  You like to use a protective choke
to prevent kickback.  Good idea.

John FReau

>  
>  Regards,
>  
>  Herwig
>