[Prev][Next][Index][Thread]
Re: Chucks question
Tesla List wrote:
>
> Subscriber: teslacoil-at-mindspring-dot-com Sun Feb 16 21:55:36 1997
> Date: Sun, 16 Feb 1997 23:48:18 -0500
> From: "Kevin M. Conkey" <teslacoil-at-mindspring-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: 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]
Kevin:
Thanks for the response to my question--sounds like you've been able to
latch onto some very interesting toys! I don't know what the going rate
is on a C5 but it sounds like you got some very handy stuff there. The
monster variac you mention sounds interesting too--wonder what the power
rating is on that one? Ah, let us know if you find anything else with a
broken caster.
Your shop sounds really nice--my situation is somewhat different. The
new coil I'm working on is presently in pieces in the basement. I'll be
assembling it in our garage during March and then one vehicle stays out
in the driveway--probably til fall. I roll the coils out into a
turn-around area in the drive to run them. A permanent area inside
would be really nice. Maybe it's time to move! I've got to wait until
about 3/4/97 for delivery on my new cap and then the last big item is
running the new power line out to the garage, I'm also planning on 100
amps. Got the wire and breaker, this weekend I'll be picking up the
conduit and other goodies and getting started on the new line. I hope
you get a chance to post some pictures of your system -- those 6"
Simpson meters also sound great!
Chuck