Re: general TC construction questions

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

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

Hi,

At 06:02 PM 1/17/2002 -0500, you wrote: 
>i am building a TC and i have some questions. How do you hook up the ball at 
>the top with the secondary coil.

Just a wire from the top winding of the coil to the metal ball.  The ball
can be screwed, glued, are just set in place.  Often the secondary wire is
just left long to connect to a top terminal.

>also, how do you hook up the capisatator 
>(probably spelled wrong) with the primary, secondary, spark gaps, 
>transformer, ect. So basically, how do you wire a TC. 

The spelling is "capacitor".  The first diagram at:

http://home.earthlink-dot-net/~electronxlc/howworks.html

Shows the basic hookup.  Other info at:

http://home.earthlink-dot-net/~electronxlc/

Explains all the basics.

>Also, what kind of 
>capisatator would i need for a 15,000 NST?
>Thanks
>

You need a cap that can withstand 21,000 Volts at very high currents.  Most
people get them from the Geek Group:

http://www.thegeekgroup-dot-org/Nonflash/sales/sales.htm#caps

The chart there shows how many you need given your NST voltage, current,
and gap type.  Assuming you have a 15000 volt 30mAmp NST and a static gap,
you would want 8nF which is a single string of 19 of their caps:

http://www.thegeekgroup-dot-org/Nonflash/sales/mmctable.htm

Use the LTR values since they are the safest for the NST.

Cheers,

	Terry