Re: Safety of Running Coil in Garage

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Gregory Hunter by way of Terry Fritz <teslalist-at-qwest-dot-net>" <ghunter31014-at-yahoo-dot-com>

Hi Alan,

--- Tesla list <tesla-at-pupman-dot-com> wrote:
 > Original poster: "Alan by way of Terry Fritz
 > <teslalist-at-qwest-dot-net>" <centauri010-at-attbi-dot-com>
 >
 > Hey,
 >
 > I've finished my first coil and the sparks are
 > adequate at best. I would
 > like to experiment with it more, but currently I can
 > only do it at night
 > because I can't see the sparks during the day. I
 > would like to run it in my
 > garage but am worried about damaging the electronics
 > in the house. What can
 > I do to be safe in the garage or should I just not
 > run it there? There is a
 > garage door unit and a light close to where it would
 > be running. Also, the

I run mine in the garage, and I also have a
radio-controlled garage door opener. I unplug it
before I run the coil. It has never taken a direct hit
from a spark. It still works fine after roughly 3
years of coiling.

 > family computer is directly behind the garage wall.
 > So, there's not much
 > physical distance between it and the coil(about
 > 10-15ft). My second

If you're concerned, you might want to unplug that
computer as well. The effect of a TC on the household
electronics is unpredictable. The only evil thing my
coils do is scramble my DSL connection--knocks my kids
off-line every time I make sparks. Tough noogies--I'm
the one who pays the internet bill!

 > question is: how big should the sparks be from a
 > coil powered by 2
 > 15kv/30ma transformers(15kv/60ma total)?
 > There are 11 primary turns, about 1400 secondary
 > turns if i remember on a
 > 4.25" x 23" pvc secondary with 27awg wire with a .03
 > uf 35kv maxwell cap.

.03uF for 15kv/60ma? That seems a bit large. If I were
in your place I'd experiment with caps in the .01 to
.02uF range.

For a well constructed and properly adjusted coil,
it's not out of line to expect sparks in the 36 to 48
inch range. Gary Lau has gotten up to 51 inches out of
his 15kv/60ma NST powered coil. See for yourself at:

http://www.laushaus-dot-com/tesla/sparks.htm

 >
 > Thanks,
 > Alan
 >

Good Luck with it,



=====
Gregory R. Hunter

http://hot-streamer-dot-com/greg