Re: new member ??
In a message dated 11/29/98 10:36:52 PM Pacific Standard Time,
<< First off. Hello to everyone! great list! found you guy's (gal's) after
building my first coil with abysmal results. I would like to post the
spec's of my second coil with a few questions to make it perform to further
my inspiration to build a really BIG coil. Ok here is where I'm
at.Secondary is 4.5" dia. ABS plastic, wound with #23 magnet wire to 21.90"
winding length. Cap. is poly-plate in series to obtain approx. .0186 uf.
(homebuilt, under consruction) primary is #10 solid copper, vertical helix,
8" dia. .69" wire spacing , x-former is 10kv .069 ma. with pfc. cap to 129
uf. My question's are should I increase my pri. ma. to .092 or greater? (I
have extra x-fofmers to parallal) or am I at the limit for my secondary?
should I keep my primary helix or go for the flat spiral wound with copper
tube? Any and all comment's greatly appreciated!
Waiting for the thunder
Sounds like a coil that should perform well. I would rebuild the primary into
a flat spiral with 1/4" copper tubing with 1/4" spacing. More power is always
a good idea (my personal opinion) add more transformers in parallel as long as
they are the same voltage rating. Your coil should have a toroid in the range
of 4" x 12" to 6" x 20". With a 20" toroid and your existing cap, the new
primary should tune about turn 8. Winding about 12 turns would allow your to
increase the toroid size and the power supply.