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Funny you should mention that. I'm just about to do a first light on my
coil that has a pair of 15kv 60ma nsts and an arsg. But first I have to
rebuild my rc filter because I made it on a perf board. All those little
copper donuts make it easy to solder to the board and they also make a
beautiful short circuit path when the high voltage is applied.
I got arcing all over the back of my board so I turned off the power,
pulled the board and looked at the back. There was no sign of any
electricity at all, it looked as new as the day I bought it. So the 15kv
is skating over the surface without burning the copper. Attempts to
remove the donuts have been fruitless. So I'm rebuilding my filter on a
piece of solid lexan with custom drilled holes for the parts and an
additional lexan strip glued down the center of the board to act as a
damn. I slapped my forehead when I realized how naive I had been!
Oh and I tried the "strip the shield off the video cable" trick to make
HV wire and the stuff is useless. It burns through when close to
anything else. One thing I did that turned out to be a total success was
using twist lock bnc connectors for my hv cabling. Those things perform
like a champ!
On 09/16/2014 09:05 AM, Brian Gray wrote:
Noob coiler here, putting together components for a 15kv NST SGTC and was
wondering if a $4 Radio Shack resin perfboard would be okay for my terry
filter? I've noticed a few people using higher quality (or at least I
assume higher quality) fiberglass perfboards and I wondered if it was maybe
because of potential heat issues with the bleed resistors or something like
that.
Brian Gray
Armagetto@xxxxxxxxx
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