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Re: [TCML] Jacob's Ladder
Jeremy,
Don't mix NSTs and MOTs. It's a formula for failure at best, and destruction of your NST at worst.
Your parallel idea, for example, will simply short out the NST output across the relatively low impedance MOT secondary winding. This will prevent the NST from developing sufficient potential to start your JL, and I have no idea what the MOT output will do to the NST secondary.
I understand your problem--the NST can self-start a JL, but the wimpy current doesn't make much of a display. On the other hand, the MOT can create an impressive flaming arc, but the JL rods must be almost touching before the MOT will strike an arc. With such a close spacing, the arc won't climb.
Have you considered a 4-pack MOT stack? Four MOTs with their secondaries in series will develop roughly 8kvac. A 5th MOT can be used as a series reactor to limit the wallplug current.
A simpler but more expensive solution is to parallel several NSTs for more current.
Cheers,
Greg
--- On Sat, 1/31/09, Jeremy <jeremy_runescape@xxxxxxxxxxx> wrote:
> From: Jeremy <jeremy_runescape@xxxxxxxxxxx>
> Subject: [TCML] Jacob's Ladder
> To: "TCML" <tesla@xxxxxxxxxx>
> Date: Saturday, January 31, 2009, 11:21 AM
> hey all, i just wanted to ask if it is possible to create a
> jacob's ladder circuit with a NST and MOT in parallel,
> the NST to supply the HV for improved arc initiation, and
> the MOT for increased amperage for larger, more sustained
> arcs. will the NST secondary simply fry or will it's
> shunting and inductance protect it? and what about the
> secondary insulation for the MOT? am i also right to assume
> that the current *should* flow through the arc and not the
> MOT secondary (thus sparing it's insulation) cos of the
> secondary's inductance?
>
> thanks,
> jeremy
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