RE: A beginner

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Vanderputten, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>" <gvp-at-pvaintl-dot-com>

Gary's quick and dirty RQSG for modest coils 

Theme - glue a series of pipes on the outside of a plastic pipe and then
insert finished product inside a larger pipe

Materials

8 x 3" lengths of 3/4" copper pipe, sanded and steel wooled of all burrs
plastic vitamin bottle or PVC  pipe about 2 1/2" in diameter. Needs to be
large enough to hold the 8 pipes on the outside with a 1" gap between the
first and last
1x 4" (approx) plastic, pvc etc pipe about 6" long  into which the bundled
pipes will fit tightly 
Muffin fan for the end. 
Epoxy cement
Spacers - 14 x1/2" x 1" strips of business cards doubled over - you are
looking for about .025" or so thickness for each strip; you will need two
for each gap
two large rubber bands


Procedure: Do several dry runs of the following before using the exopy

1. Be sure the bottle or other form is completely free of labels, etc.
2. Put a neat bead of glue on each pipe leaving at least 1/2" free at each
end
3. Carefully attach each to the outside of the bottle or other plastic form
4. The key trick here is to secure the rubber bands  around the package of
pipes to hold them in place. The pipes will naturally tend to touch one
another, sort of like a Gattling gun. It just has to be tight enough to keep
them touching.
5. Keep them vertically aligned - the rubber bands will hold it nicely in
place. Watch for glue.
6. When you are satisfied with the package, carefully place the spaces at
the top and bottom of each pipe gap without touching the glue. Check the gap
with a feeler gauge - you can adjust with more or less strips. The key is
that the gaps are consistent, and there is no epoxy between pipes or
touching the spacers.
7. Let this dry over night.
8. The next day, remove strips and ruber bands. The pipes shold maintain
their positions, perfectly gapped.
9. Insert this into the larger pipe - mine is snug (4.5" lexan); Do not
permanently attach it - you want to be able to remove for cleaning.
10. Attach an appropriate muffin fan at one end - I epoxied mine.
11. I used alligator clips for connectors initially, but later (once tuned)
fashioned a better connection.
12. 
My experience with this device was very good. I was concerned about the heat
but it seemed to be OK with my 1000 W coil. Even after five minutes of
continuous operation it was only warm. The fan is very important for this. 

I used lexan for the outer form and it looks really neat, but is very
visable during operation, a desireable feature for my demo coil.

Good luck

Gary











-----Original Message-----
From: 	Tesla list [mailto:tesla-at-pupman-dot-com] 
Sent:	Tuesday, March 26, 2002 9:41 AM
To:	tesla-at-pupman-dot-com
Subject:	RE: A beginner

Original poster: "george hadle by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<ckreol1-at-yahoo-dot-com>
I (as well as others, I assume) want to know your
quick way to make the spark gap. Please 
thanks 
george
--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Vanderputten, Gary by way of Terry
> Fritz <twftesla-at-qwest-dot-net>" <gvp-at-pvaintl-dot-com>
> 
> Don,
> 
> I would recommend that a beginner first start with
> RQSG (Richard Quick) type
> of tube gap - the rotary is a lot of extra work.
> None of my coils use them
> and I am content with their performance. (On the
> other hand, mine don't
> throw 3' sparks, either.) 
> 
> 
> If you need advice on a simplified way to quickly
> build a RQSG without the
> nuts and bolts contact me at garyvp-at-earthlink-dot-net.
> 
> Good luck 
> 
>  -----Original Message-----
> From:	Tesla list [mailto:tesla-at-pupman-dot-com] 
> Sent:	Sunday, March 24, 2002 5:04 PM
> To:	tesla-at-pupman-dot-com
> Subject:	A beginner
> 
> Original poster: "by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> <dlynch-at-reyercorp-dot-com>
> 
> Hello,
> 
> There was a Tesla coil in my high school elctronics
> class many years 
> ago. There was an ealier "unconfirmed" adventure,
> wherein the class 
> held hands and formed a chain down the hall to the
> nearby class to 
> "touch" the teacher.
> 
> But that was then, and I never studied the
> construction, and now my 
> daughter wants to build one for her high school
> senior project.
> 
> Could someone point me to a basic "block diagram"
> description of the 
> rotary gap type?
> 
> I have been searching the Web and joined this list,
> but I'd like to start 
> with the simplified picture and build from there.
> 
> Thanks in advance for any guidance.
> 
> Don
> 
> 
> 
> 


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