Re: nst rc filter component sources?

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

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

Hi Larry,

In the instructions for the filter at:

http://hot-streamer-dot-com/TeslaCoils/Misc/NSTFilt.jpg

All the DigiKey part numbers are give inside the {xxx-nd} brackets.

This filter was perfected later after the paper was written and is now the
standard.

Pictures of the filter (maybe slight differences) are at:

http://hot-streamer-dot-com/temp/2001-04/P14260017.jpg
http://hot-streamer-dot-com/temp/2001-04/P14260018.jpg
http://hot-streamer-dot-com/temp/2001-04/P14260019.jpg
http://hot-streamer-dot-com/temp/2001-04/P14260020.jpg

Cheers,

	Terry


At 11:32 PM 8/28/2002 +0000, you wrote:
>trying to build a nst rc filter (as per terry's paper).
>trying to make sure i match the right components.
>
>checked out digikey...
>found some ceramic disc capacitors rated at 3kv(dc)
>  such as p10842-nd (p606) at 3kvdc / 150pf. approx price $0.20
>i'll need quite few to make the 30kv rating.
>
>found some power resistors
>vitreous enamel wirewound power resistors pn avt200-1000-nd (p639)
>rated voltage is 1kvac  approx price each $17
>225watt.
>
>are these acceptable choices?  I'm quite awful at component selection :)
>im guessing that doorknob caps would be expensive if purchased new.
>I've seen them occasionally on ebay, but i figured i should build
>with new components.  i don't expect to build another, so i might as well 
>build it right.  I'd like to make the rc filter able to withstand
>12kv/120ma.
>
>larry.
>
>