Re: DC vs AC TC (was Re: NST->DC Re: CGA Monitor Flyback)

• To: tesla-at-pupman-dot-com
• Subject: Re: DC vs AC TC (was Re: NST->DC Re: CGA Monitor Flyback)
• From: "Megavolt Nick" <tesla-at-fieldfamily.prontoserve.co.uk> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Sat, 26 Feb 2000 18:47:25 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

H Bill,
         my comments:
> Original Poster: "William Parn" <parn-at-fgm-dot-com>
> > Original Poster: "Megavolt Nick" <tesla-at-fieldfamily.prontoserve.co.uk>
> > > Original Poster: "Marco Denicolai" <Marco.Denicolai-at-tellabs.fi>
> >
> > > >To make a DC Tesla coil using a NST, can I use HV rectifiers on the
NST
> > > >secondary side? Or is this a bad idea with NSTs?
> > Nope - It'll work fine, just make sure you over rate the rectifier to
cope
> > with the transients, an LCR filter wouldn't be a bad idea either.
> >
>
> On the LCR protection circuit is it better to put that on the
> NST side of the bridge rectifier or on the TC side of it?
The TC side - it needs to be a properly deisgned lowpass filter rather than
one of the standard neon protection circuits.
If you like you could use a few hundred pF of suppression caps across the
xfmr as well, but you shouldn't really need them.

>
> I have been a little worried about my .35 ma diodes when
> used with the 9kv-at-30ma.  How far should I over rate the
> rectifier?
A lot - I'd use at least 100ma diodes.

Good Luck
Nick Field

>
> Many Thanks,
> Bill Parn
>
>
>

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