[Prev][Next][Index][Thread]
Re:Chucks question
> Now, the real reason I responded to your question is to ask
you a
> question--will you share the general plans for this new coil of yours
> with all of us?? Sounds like a real, ah, healthy coil! :^) Have fun
> with the winding and let us know how it goes.
>
> Chuck Curran
>
Chuck,
My plans stared like this. 3 years ago, before this list and on my own
in the dark, I wound a coil with 18g wire spaced .003" on a 16"
honeycombed core 7.5' tall.
Now I see that was probably a mistake. I tryed powering it with a 8g
helical primary and 2 .05 xray caps in parallel with 4 120ma 15kv neons
in parallel. before I got it tuned, I had blown the neons!
After a house move, that set me back, and reading this list for a year,
I have shifted gear. I also acuired a large unit from the RAF by way of
an ANG base, a power factor correction unit. It weighed 1500 lbs and had
many inductors and fan cooled high power resistors that could be
switched in and out with 50 and 100 amp relays. It also has 4 - 6"
Simpson meters, amp, volt, watt/var, and power factor. The amp and
watt/var meters can be switched in 5 ranges from 5amps to 250 amps by
way of 2 large rotary switches, 6 current xfmrs and 3 meter xfmrs. This
thing is quite large. It was my personal Stonehenge as I am in a
wheelchair and have no help with these things, plus I believe the
military in all their wisdom disposed of it because it had broken
castors. Hell, they shipped it from England to a base in Arkansas to
Michigan, where they sold it for $50 to me! What is the going rate for
fuel on a C5 nowadays anyway?
Anyways I have gutted the inductors, and am in the process of rewiring
it. I want it to be flexible. I went with the 19.8KV 15KW xfmr also to
be flexible. Same thing with the 1" primary, and the 2 .1uf 28 kvrms
commercial pulse caps (multiple ways to configure, balanced, parallel,
series, separate), and the 2 ~ 300 amp welders, and the monster 900 cfm
cooled variac, and the 300 amp house service (100 amps out to the 768 sq
ft workshop right now). I figured with all this I can always power down,
and will not worry about trying to find more power down the road. At
least for many years. I know there is a lot to be said for efficiency,
but hell what if I ended up with an efficient system at 15KW? (again,
down the road)
I still have to wrangle over whether I should be using a schroneous of
achroneous (sp?) gap.
I will first start out, by the end of this summer, with chopping that
large coil in half. I will play with one of them. Then I plan to hook
the 2 halves togeather and try that out. (hence the post earlier this
week about out of phasing).
Then I am going to Just try out different geometries of secondaries
myself. Especially since I visited Skip Greiner's coil last week. I know
all the talk about many turn, certain aspect ratio coils, but Skips
secondary has only 240 turns of spaced out wire on a short large
diameter frame (against the norm), and puts out healthy 60 inch bolts
from 700 watts input. I feel I need to explore secondary forms on my
own. Besides, I love winding those coils!!
I know that was long winded, but I hope that answers your question
By the way, with the 2 identical secondaries, with 1 being the operating
coil, what exacty are the types of experiments I could perform with the
other coil? Anyone?
[Part 2, Text/HTML 86 lines]
[Unable to print this part]