[TCML] Twin Coil Prototype at Maker Faire

[David Rieben]

Hi Greg,

Wow! 105" tall secondaries! That's nearly 9 ft. tall. I didn't
realize from watching the video that the secondaries themselves
were that tall. I wish that I had the available overhead clearance
in my garage just to allow storage, not to mention operation, of
beasts of that calibre ;^) 8 ft. celings don't allow for housing 
beasts like that. As a matter of fact, I have to "decapitate" the
top load from my Green Monster coil system to wheel it in and 
out of my garage door for setup and operation.
http://youtube.com/watch?v=eWZD3M-nye8
Not the best video quality and I have since improved the ope-
rational smoothness and power by further mods to the ARSG
(no more racing sparks, either) ;^) but this should give a good
idea of my coil's operational perfromance. The top of the toroid
is about 7.5 ft. above ground level.

David Rieben

----- Original Message ----- 
From: "Greg Leyh" <lod at pacbell.net>
To: <tesla at pupman.com>
Sent: Tuesday, May 06, 2008 9:17 AM
Subject: Re: [TCML] Twin Coil Prototype at Maker Faire


> Hi Terry,
> 
> They're fairly straightforward coils, secondary form is 24"x105", toroid 
> is 11"x55".  These dimensions are 1:12 scale of the 12-story NLL design. 
>  These prototype coils are used mainly to test design concepts for the 
> NLL coils.  The primary drive is the conventional C-switch-L scheme, 
> with IGBT's in place of a spark gap for improved efficiency and control. 
>  The primary operates at 3kV, 4.5kA.  Currently, the system can produce 
> an 18ft point-to-point arc with about 6kW input power.  Although the 
> prototype operates from either single or three-phase power for 
> convenience of demonstration, the final NLL design will use a dedicated 
> six-phase, 20kV system.   GL
> 
>> Date: Fri, 02 May 2008 18:25:02 -0600
>> From: Terry Blake <tb3 at att.net>
>> Subject: Re: [TCML] Twin Coil Prototype at Maker Faire
>> To: Tesla Coil Mailing List <tesla at pupman.com>
>> Message-ID: <481BB0DE.1000304 at att.net>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>> 
>> Hi Greg,
>> 
>> What can you tell us about the topology /design/specs of these coils?
>> 
>> Terry Blake
>> 
>> 
>> Greg Leyh wrote:
>>> > Hi All,
>>> >
>>> > I'll be running the twin coil prototype at Maker Faire this year.
>>> > http://www.lightninglab.org/concept/Integratron01.jpg
>>> >
>>> > Maker Faire is this weekend, May 3&4, at the San Mateo County 
>>> > Fairgrounds, San Mateo, CA.  Here's the info for the Faire: 
>>> > http://makerfaire.com/
>>> >
>>> > Stop by if you're in the area.  GL
> 
> 
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