Re: Tips on capacitor and toroid design

In a message dated 1/6/99 4:42:19 AM Mountain Standard Time, tesla-at-pupman-dot-com

>  Capacitor builders should consider Kapton over polyethylene or polystyrene.
>   Kapton has a dielectric constant of 4.2 - 4.2 which allows very small unit
>  construction.  Another great feature of Kapton is it's operating
>  temperature max is nearly equal to Teflon --- over 500 degrees F. for
>  Kapton.  A typical design with Kapton dielectric will produce a 1,000 pF HV
>  capacitor element with an element size of only 2 x 2 x 1 inch.  Elements
>  are series-parallel connected to obtain proper value.  Kapton is
>  distributed by DuPont Co. -- consult your local library Thomas Register for
>  a rep in your area.
Good stuff that Kapton.  I have some heating pads at work that use it for
insulation.  The only problem might be the cost.