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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
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