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Re: [TCML] first coil help 2 - schematic with counterpoise



Hi Thomas,

I forgot to say "your schematic and wiring is fine". Keep in mind (referencing your schematic), the gap to primary (top), primary to cap (bottom), and cap to gap (bottom), are all high current paths. This is where it is good to have some thick wire. The rest of the circuit can get a away with smaller wire, but it's good to keep the mentioned areas of a decent conductor size. The areas described is the high current discharge path. It's nice to realize this, as some actually use thick wire for their charging circuit which isn't necessary. If you get the opportunity, pick up some GTO cable for the charging circuit (15kV insulation, 14 awg). It's nice to have a decent role of this cable around for various high voltage activities and works great between the hv output of the NST and before the high current path.

Take care,
Bart

Ryckmans, Thomas wrote:
Hi,

Chip has added some pictures here:
http://www.pupman.com/current/tryckmans/index.html)
Is the wiring scheme okay? I am especially curious about the
counterpoise wiring - not sure I got it right

I have used EMI filter as described by Gary Lau and a Terry Filter,
planning to use MOVs at 2X the rated voltage of my NST, e.g. 2x6000V =
12kV hence 6 1800V Movs - is this enough?

Many thanks, as usual, for comments and tips

Cheers

Thomas
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