Re: sg v tube coils

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

Original poster: FutureT-at-aol-dot-com 

In a message dated 1/22/04 7:43:07 PM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:

Bob,

For SG coils I use :

   spark length (inches) = 1.7*sqrt input power (watts)

For tube coils I use :

   spark length (inches) = 0.5*sqrt input power (watts)

So that's not all that bad for the tube coils considering...

I'm not sure if the very low frequencies actually help much.
I never tried a lower frequency than 100kHz.

John


>We could just put 4 tubes in parrallel for 6kW.
>I forgot the pk to rms factor but its still a comparison.
>
>Comments.
>
>Bob
>
>
>