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Re: My first coil (fwd)



---------- Forwarded message ----------
Date: Thu, 27 Feb 1997 20:23:06 -0700
From: "DR.RESONANCE" <DR.RESONANCE-at-next-wave-dot-net>
To: Tesla List <mod1-at-pupman-dot-com>
Subject: Re: My first coil (fwd)

To: Steve Falco

You will need a better sparkgap than nails for proper quenching
(off-switching).  If on a tight budget it is better to use 6 ball bearings
(3/8" dia.).  Support the center ones on small phenolic rod (or slim old
plastic pill bottles).  Use a small muffin fan (around 150-250 CFM) to blow
a lot of air through the gap.  Good luck.

Use a small toroid or large 6-10" ball for the top electrode.

DR.RESONANCE-at-next-wave-dot-net


----------
> From: Tesla List <mod1-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Re: My first coil (fwd)
> Date: Thursday,February 27,1997 8:58 PM
> 


---------- Forwarded message ----------
Date: Thu, 27 Feb 1997 03:27:47 -0600
From: Chuck Curran <ccurran-at-execpc-dot-com>
To: tesla-img-at-pupman-dot-com
Cc: Tesla-list-subscribers-at-poodle.pupman-dot-com
Subject: Re: My first coil

Tesla Image List wrote:
>
> Subscriber: sfalco-at-worldnet.att-dot-net Wed Feb 26 22:16:41 1997
> Date: Wed, 26 Feb 1997 06:48:04 -0500
> From: Steve Falco <sfalco-at-worldnet.att-dot-net>
> To: tesla-img-at-pupman-dot-com
> Subject: My first coil
>
> Here is a picture of my first coil.  I know it is not much by the
> standards of some of the folks on the list, but ya gotta start
> somewhere.  The capacitor is 8 sheets of plexiglas with aluminum foil
in
> between.  The glow around the edges is cool, but I have been told it
is
> wasting power, and will fail, so I have built an LDPE and oil
insulated
> rolled cap.
>
> The spark gap at the bottom of the picture is the world's cheapest:
14
> small nails in a board, bent to make seven series gaps.  They sorta
> worked until I hooked up the new cap, then they melted.  I now have
> built a "Richard Quick" style gap, which is quite solid.
>
> By the way, I know I should have a top toroid, but the insulated
primary
> is impossible to tune, and it is already at 20 turns anyway.  I'm
> working on a new secondary (and primary) so tuning will come next.
>
> Thanks to all the folks on the list for getting me this far - more to
> come!
>
>         Steve Falco
>

Steve:
    Nice to see one more operational coil in the group.  Good job on
your first attempt.  You might want to consider a trip to the local
building supply store for the toroid construction effort.  I've used
expanded aluminum air duct for the O.D. on two toroids with good luck.
The center disk has been made out of foam insulation that comes already
covered in aluminum foil.  It easy to work with and light.  There is
also aluminum tape for covering the duct tube to really smooth it out,
all three materials can be found at Home Depot, Builders Square or that
type of store..  Good Luck!

Chuck