Re: First Light for 10" Coil.

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

Original poster: Bart Anderson <classi6-at-classictesla-dot-com> 

Hi Peter,

No need to measure just to verify. "I", the Bart Dude, had an input 
incorrect = my fault.
Yesterday, there was post about Javatc and a user couldn't get the outputs 
he expect. That too was an input error on his end (cap size).
Humility can be good for the sole.

Here's what the mistake was:
I modeled your strike ring using the disc input in Javatc, but I forgot to 
check the "ground" checkbox (the default is topload). This checkbox tells 
the program where it is connected (thus the error). Once I saw the mistake 
and corrected it, all came out as measured. I must have also left that disc 
input on the self res as well.

Your in tune, no doubt about that. I'd leave it as is.

Keep up those BIG SPARKS!
I think I need to get off this computer and go get an ozone fix!

Take care,
Bart


Tesla list wrote:

>Original poster: "Peter Reid" <peter-at-reidconsulting-dot-com.au>
>Bart,
>
>Thanks for the input and complements :) I appreciate it.
>
>I will just clarify the resonant frequency. The Unloaded resonant
>frequency is about 145 kHz, loaded with the Toroid it drops to 84.8 kHz,
>as measured with a signal generator and scope. Do you think it's worth
>trying to tap the primary about 1/2 - 1/3 further out? It is still
>tapped where I set it initially and I haven't tried running the coil at
>any other tap positions. Another thing, I Don't know if you could tell
>from the pictures but the Toroid is not smooth, its kind of ribbed so I
>guess that's going to reduce the break-out voltage of the Toroid.
>
>Regards
>
>Peter Reid.