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Re: Tesla coil project plans (fwd)



---------- Forwarded message ----------
Date: Mon, 20 Jul 1998 00:18:14 -0400
From: Justin Hennigan <justinh-at-interlaced-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Tesla coil project plans (fwd)


-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Monday, July 20, 1998 12:18 AM
Subject: Tesla coil project plans (fwd)


>
>
>---------- Forwarded message ----------
>Date: Sun, 19 Jul 1998 12:50:58 -0400
>From: Justin Hennigan <justinh-at-interlaced-dot-net>
>To: Tesla List <tesla-at-pupman-dot-com>
>Subject: Tesla coil project plans
>
>Hello all,  I was wondering if anyone could give me the specs to one of
>their coils and directions on how to build it.  I am looking to build a
>large coil, but I don't have time to experiment and do trial-and-error
tests
>to get it exactly right.  So I'm looking for simple directions on how to
>build a coil that will produce good results with the equipment I have.
>Here's a list of the good stuff.
>
>4 moving, 2 stationary point, rotary synchronous spark gap
>13/16 copper ribbon
>  5A 0-140 VAC Powerstat
>18A 0-140 VAC Variac
>28A 0-240 VAC Powerstat
>5) microwave transformers
>14.4 KV Potential transformer
>15 KV 30mA Franceformer for neon
>7.5 KV 30mA Franceformer for neon
>10 KV 23mA Franceformer oil-furnace ignition
>
>20KV Fixed vacuum Jennings capacitor
>7.5KV vacuum variable capacitor
>2) 40KV 2700pF Ceramite
>2) 20KV 500pF Sprague doorknob
>6) 30KV 500pF Sprague doorknob
>4) 15KV 40pF CRL transmitter cap
>5) 20KV 500pF CRL doorknob
>3) 15KV 1000pF ceramic
>14) 4KV .22uF Sprague Fabmica
>
>If there's anything i can do with these items, I'd like to know.  I'd like
a
>coil that can make 3foot streamers or more.
>
>
>
>

I also have a few secondary coils on PVC that i made when i had access to a
screw-cutting lathe.  I machined a smooth surface on pvc tubing and cut a
fine groove to lay the wire in.

length    diameter    wire    tpi
23 3/4     1 7/8          #26    close wound
6 7/8        4 7/16       #26     41
17 5/16    4 1/2         #26     32
20 7/8     2 1/4          #26     32
19 3/16    3 1/2          #26   44
31            3 1/4         #26     32

I know that none of these follow the rule of thumb for the modern coil , but
that's what i experimented with at the time.   I can wind any coil i need ,
i just need the specs.