Re: [TCML] Transformer

[robert@xxxxxxxxxx]

I was going to ask the question about a lower primary since I do have a motor driven 0-250V 10A vairac and a spare " Buzz Box" welder to play with. But for the time being I have picked up an actown 15/60 NST to use as a teaching tool until I have enough expertise to move up into the big league.

Again thanks to all. I can see already with. the willingness to help you all have expressed to me this is going to be a grand adventure.

Rob
KI4HXT
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-----Original Message-----
From: "S&JY" <youngs@xxxxxxxxx>

Date: Tue, 5 Aug 2008 21:04:36 
To: 'Tesla Coil Mailing List'<tesla@xxxxxxxxxx>
Subject: RE: [TCML] Transformer


Rob,

You have been given some good advice, and it is good to see you will heed
it.  I, too, recommend using a NST for your first coil.

One thing not mentioned in other comments is that there is no need to run
your big transformer "full tilt".  There is no reason you can't power the
primary with half or a third of it's rated input, thus bringing the
secondary output voltage down to something more manageable for a Tesla Coil.
You would still need a suitable current limiting ballast, such as an arc
welder.

Another thought:  You could open up the transformer and see if it is like a
NST, having two secondary windings with the mid-point grounded.  If so, you
could use just half the secondary.  

--Steve Y. 

Hello All, you can better believe I will take heed to all of you 
warnings and advice. I plan to shelf the 50kv until I learn more and 
gain more expertise in the craft. I have had some hi voltage experience 
with large electric motors also I do perimeter security and video 
surveillance work at power plants and sub stations and I'm required to 
take part in there safety training. I am a firm believer in "Baby 
Steps". I look forward to learning from you all in this adventure while 
keeping my name out of the obituaries ;-).

Peace and thank you all,
Rob
KI4HXT
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