Re: [TCML] 1256D Variac

["Hal Krohn" <2halice@xxxxxxx>]

Hi Tyler,

The choke that Jim referred to, that is required to mate two 1256Ds, is a 
T5587, as shown in my pole pig coil schematic 
(http://www.halice.com/physics/bigcoil/1BigColor.gif).  There is a lot of 
info about them, such as this old Pupman thread: 
http://www.pupman.com/listarchives/2001/March/msg00341.html.  Good luck with 
your coil and please be careful!

Hal


----- Original Message ----- 
From: "Jim Mora" <wavetuner@xxxxxxxxx>
To: "'Tesla Coil Mailing List'" <tesla@xxxxxxxxxx>
Sent: Wednesday, May 27, 2009 9:25 PM
Subject: [TCML] 1256D Variac


> Hi Tyler,
>
>
>
> It occurred to me that the Superior 1256 is rated at 28amps. So 28*
> 240=6720VA. You will need 2 on a common shaft to run up to 12KVA. They can
> take a bit more the 28amps but not that much!. Stacking two 1256's likes 
> to
> have a balancing choke. Check the archives on construction of one of these
> from a small variac unless you get lucky and find a dual with a choke. Pig
> coiling ain't cheap!
>
>
>
> Regards,
>
> Jim Mora
>
>
>
> I aquired all my stuff over time. I am just getting ready for first light.
> Be sure you look at control cabinets and a BIG contactor say an Allen
> Bradley Nema 5 for your needs. Also Ebay. Just check the contacts which 
> can
> be replaced. All the power going out goes through the contactor and you do
> not want it to weld connected!!! A fused safety switch rated at 20HP or 60
> amps is about 14400VA is also required if the contactor should fail closed
> or the transformer has a fault or some other High Power failure occurs.
>
>
>
> Jim Mora
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla 

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