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RE: differential probes
Original poster: "jimmy hynes by way of Terry Fritz <teslalist-at-qwest-dot-net>" <chunkyboy86-at-yahoo-dot-com>
Hi,
My stun gun used two staples for a spark gap. They
formed an X shape, and could be adjusted by pushing on
it. I would just need a way to calibrate it. If I used
"BBs" or 0.25 inch balls, I could solder them in
holes, and just look up the breakdown voltage for
spheres.
I'll cut the boards up wherever it looks like it needs
it.
--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Terry Fritz" <teslalist-at-qwest-dot-net>
>
> Hi Malcolm,
>
>
> >I haven't downloaded the file as I don't have a
> suitable program to
> >open it with available on the NW. I do have a tip
> to deal with the
> >problem mentioned in the previous paragraph: the
> way to increase the
> >isolation barrier without consuming a lot of board
> space is to
> >physically cut a slot in the board across the
> isolation barrier. This
> >gets rid of the problem of surface tracking. I
> presume fibreglass is
> >the material of choice for this board? <paxolin or
> anything like it
> >is OUT>.
> >
> >Malcolm
> ><snip>
>
>
> That is a very good idea! Tracking under these long
> resistors could be a
> big problem especially with a little left over flux.
>
> Jimmy - Could we drill 4 big holes under the
> resistors?
>
> Also, I think hooking to the board with very thin
> wire and then having
> spark gaps on the board to take "bad" events is the
> way to go. Maybe
> solder "BB's" or 1/4 inch balls to the board at some
> spacing. The spark
> gaps could take a big high voltage high current hit
> (arc at 2500V) and then
> the thin wires could blow apart and basically take
> things out of the
> circuit. I'll see if I can figure something simple
> out there...
>
> Cheers,
>
> Terry
>
>
>
=====
Jimmy
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