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Re: [TCML] charging reactors
Hi Dave, I built my big coil about a year ago and I never use this coil designing software. I always look at the coils other people build to find out what I need to know. Your Green Monster is one of the ones I have looked at. I was even going to use green magnet wire but I wasn't able to find any the right size at the time.
The total amp draw on my system is about 50 amps and maximum spark length is about 9 feet. Also I forgot to mention that the toroid is 48"x 12".
Roger
---- David Rieben <drieben@xxxxxxxxxxx> wrote:
> Hi Roger,
>
> Wow, your "big coil" specs are quite similar to those
> of my Green Monster coil system:
> http://www.dawntreader.net/hvgroup/david/gm.html
> This webpage is quite outdated but the basic tank
> circuit is still the same. During my last "mini-mid-south
> Teslathon" in December, Phillip Slawinski caught some
> decnt video footage of it in operation and up loaded it
> to youtube.
> http://www.youtube.com/watch?v=GGb-qWIqx7g&feature=related
> and:
> http://www.youtube.com/watch?v=H3pfStBx2qY&feature=related
> Anyway, I found it interesting that our secondary
> coils are of nealy identical proportions and wound
> with the same sized wire (#19). My primary C is
> a little larger than yours ( .1 uFd vs .085 uFd) and
> you have gone the extra step and made yours a
> DC resonant system where mine is still just the
> plain 'ole asynch rotary gap driven AC input sys-
> tem. BTW, what is you amperage draw from the
> mains and how much aprk length are you getting.
> Mine will pull up to ~80 amps and the spark length
> is generally in the 11 to 13 ft. range with occasional
> 15 ft. strikes. My topload is 12 x 56 and I run in the
> ARSG in the 300 to 350 BPS range.
>
> David Rieben
>
>
> ----- Original Message -----
> From: "Roger Smith" <rwsmith@xxxxxxxxxxxxxx>
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Sent: Friday, March 06, 2009 8:26 AM
> Subject: Re: [TCML] charging reactors
>
>
> > Hi Jim, Most of those pictures are of other peoples coils but I can tell
> > you more about the big coil I use the charging choke on. The secoundary
> > winding is 12.5 inches in diamitor and about 50 inches long wound with 19
> > gage wire. The primary coil is a flat spiral, taped at the tenth turn.
> > The primary capacitor is about a .085 uf.
> >
> > Roger
> > ----- Original Message -----
> > From: "Jim Mora" <wavetuner@xxxxxxxxx>
> > To: "'Tesla Coil Mailing List'" <tesla@xxxxxxxxxx>
> > Sent: Thursday, March 05, 2009 1:47 PM
> > Subject: RE: [TCML] charging reactors
> >
> >
> >> Hi Roger,
> >>
> >> Nice coils! Can you comment on your TC coil geometries?
> >>
> >> -----Original Message-----
> >> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> >> Behalf
> >> Of Roger Smith
> >> Sent: Thursday, March 05, 2009 9:01 AM
> >> To: Tesla Coil Mailing List
> >> Subject: Re: [TCML] charging reactors
> >>
> >> I use a home made, 6 Hennery charging reactor for my DC resonant
> >> charging
> >> Tesla Coil. It is basically just several thousand turns of 24 gage
> >> magnet
> >> wire on an "I" core and I use many layers of packaging tape between each
> >> winding layer for insulation. This is fairly inexpensive way to make a
> >> choke but it is tedious.
> >>
> >> Here is a link to some pictures.
> >> http://www.flickr.com/photos/29248051@N02/
> >>
> >>
> >> Roger
> >> ----- Original Message -----
> >> From: "jimlux" <jimlux@xxxxxxxxxxxxx>
> >> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> >> Sent: Sunday, March 01, 2009 1:56 PM
> >> Subject: [TCML] charging reactors
> >>
> >>
> >>> So, if one needed to build or buy a dozen charging inductors for a
> >>> resonant charged spark gap coil, where would one look..
> >>>
> >>> It's for an application where there's multiple coils being charged from
> >>> a
> >>> common HV DC bus.
> >>>
> >>> Probably need 5-10 H, and it needs to handle a few hundred mA to amp
> >>> (e.g.
> >>
> >>> 10kW @ 10kV is an amp), and, of course, have a 10-20kV voltage rating.
> >>>
> >>> I'm looking for ideas that are either off-the-shelf or made from off the
> >>> shelf things (e.g. no scrounging a half dozen MOTs and then sawing an
> >>> air
> >>> gap and rewinding it)
> >>>
> >>> (or, some other clever scheme to charge the primary tanks of multiple
> >>> coils)
> >>>
> >>> Jim
> >>> _______________________________________________
> >>> Tesla mailing list
> >>> Tesla@xxxxxxxxxxxxxx
> >>> http://www.pupman.com/mailman/listinfo/tesla
> >>>
> >>
> >> _______________________________________________
> >> Tesla mailing list
> >> Tesla@xxxxxxxxxxxxxx
> >> http://www.pupman.com/mailman/listinfo/tesla
> >>
> >> _______________________________________________
> >> Tesla mailing list
> >> Tesla@xxxxxxxxxxxxxx
> >> http://www.pupman.com/mailman/listinfo/tesla
> >>
> >
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
>
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