Formulas wanted!(toroid, helical)

• To: tesla-at-poodle.pupman-dot-com
• Subject: Formulas wanted!(toroid, helical)
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Sat, 10 May 1997 00:05:28 -0500
• Approved: tesla-at-stic-dot-net

Subject:  Formulas wanted!(toroid, helical)
  Date:   Sat, 10 May 1997 01:59:02 +0200
  From:   tesla <tesla-at-ixx.se>
    To:   tesla-at-pupman-dot-com


Hi.

I'd like to get the correct formula for calculating the capacitance
on a toroid terminal.
I have the formula for calculating the inductance of a helical primary, 
but what means "Average radius" and "Average height". Where do i measure 
these averages???
Some sort of picture describing it would be very welcome.


Thanx!!

//Matt

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