[TCML] Tim's Qs was: can you connect the secondary *directly*
to the primary
jimlux at earthlink.net
Fri Nov 16 16:24:19 MST 2007
> "I made a spark gap out of two screws and a u-shaped block of wood."
>NOT GOOD! At ~10 kV and above, wood, with any degree of humidity, is
>CONDUCTIVE!! Several heavy coats of varnish or polyurethane helps, but it's still
>better to use HDPE or similar plastic. For your gap, use 2 brass bolts head to
>head, or two round brass lamp finials, or two brass drawer pulls, or two
>round brass door knobs, etc. You can also use short sections of copper pipe in
>parallel but your sum of all gaps should not exceed 2kVrms/mm. Also use plenty
>of air flow, vacuum cleaner, fan, pressure hose, etc.
I would encourage whipping on down to the hardware store and getting a couple of 3/4" copper pipe couplings (or a couple 1" lengths of 3/4" copper pipe) to use as the gap. It works MUCH better than any sort of ball gap, bolt heads, finials, etc.
Save the finials for a safety gap on your transformer, if you need one.
More information about the Tesla