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RE: Scroungein' (fwd)

I am constructing a Tesla Coil (my first one) almost identical to 'Project
1'.  I used 28 AWG magnet wire, and wound 18 inches on the 4" PVC.  My
static gap is just two brass bolts on brass angle brackets, and the
capacitor is just a Glass dielectric beer bottle capacitor (like the one
currently being discussed on the list).  The toroid that I am using, after
some research, is a 4" diameter tubing with a 5" center(of the toroid), and
covered with metallic flue tape.  The primary coil that I plan on using is a
flat helix, and I plan on using 25' of the 1/4 inch tubing (about 8 turns I
figure).  Although I have not tested the coil yet, I figured I would tell
you the specifications for my similar coil.  I hope to finish the coil by
the end of the week, and I will let you know how it turns out.  I am by no
means an expert, but I thought that I would let you know what I have done.

-Andy C.

> -----Original Message-----
> From: Tesla List [mailto:tesla-at-pupman-dot-com]
> Sent: Saturday, April 17, 1999 11:20 PM
> To: tesla-at-pupman-dot-com
> Subject: Re: Scroungein' (fwd)
>
>
> Original Poster: "christopher boden" <chrisboden-at-hotmail-dot-com>
>
> Due to constant design changes and new ideas....not to mention a
> through flogging from Sam ;-) we are trying two seperate ideas.
>
> Project 1
> Design Goal: To produce 5' discharge from a 120VAC <20Amp input.
> Secondary size: 25" X 4"
> Secondary winding: 26 AWG? (any ideas?)
> Secondary form Schedule 40 PVC 4" pipe with glued on endcaps
> Winding method: Lathe....BIG lathe.
> Primary winding: 1/4" soft copper tubing
> Primary form: Flat helix?
> Primary size? Number of turns/spacing????? any ideas?
> Caps: Where can we get some? What size do we need? How long will they
> last? We need rock-solid-reliability.
> NST: 15KVAC -at- 30mA
> Variac: ? what size do I need 20A?
> Spark Gap:Static (no shrapnell) possibbly the Quick model
> Torus: ?? biggest possible?
> Anything else? What am I forgetting?
>
> Prodect 2
> Coil Name: Thor
> Secondary size: 12" X 5' twin secondaries
> Secondary wire: 18AWG
> Secondary Form: 2  1X5" Sonotubes 1/4" Cardboard tubes
> Primary Wire: 3/8" Soft copper tubing
> Primary Size: ?
> Primary Form: Flat Helix
> Power Supply: 20KVA Pole Pig (Supplier?)
> Spark Gap: 4 Pole Async Rotary in a 1.5" Lexan Enclosure (ideas?)
> Control Circuitry:?? Ideas?
> Caps: Big... Ideas? Suppliers? MMC?
>
> Possible "Magnifier" setup insted of twin secondaries?
>
> Design Goal: Biggest possible discharge:
>
> Both coils will be housed in a dediated "High Voltage" room.
> Room dimentions : 70' Long X 32' Wide X 23' High
> Raised wooden floor (concrete floor 3' below for 26' ceiling height)
> can be remooved if needed.
> Brick walls 3-5' thick
> Dual RF dedicated grounds to 10' Ground rods on 0AWG ACSR conductors.
> Concrete ceiling with 3' X 6" I-Beams every 3'
>
> Power supply (Mains): 480VAC -at- 500Amp 3Phase to 100 KVA Stepdown (220)
>
> Control room will be next to the HV room with interlocks preventing
> the doors to the HV room being opened while the mains to the TC are
> energized.
> Both coils will require a key to arm the system and a button to be
> held to power the NST/pole pig.
> Thor will require 2 Keys 6' apart to arm the system and a button to
> arm the Pig.
>
> There may be a Faraday cage in the HV room for viewing, if this can
> be done with ABSOLUTE safety to persons/ cameras inside...any ideas?
>
>
>
> Christopher A. Boden
> The Geek Group
> 344 Ionia SW
> Grand Rapids MI
> 49503
> (616)-574-4065
>
> The Geek Shall Inherit the Earth!
>
>
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