I found a good source for NSTs in Craigslist and took advantage of it.
There was quite a stack to dig through, but I found a set of 8 matching
NSTs and bought the batch for $100. They are 30mA @ 15,000volts (450va).
They are setup as two sets of 4, double stacked on a wheeled cart. It's
too much for one person to lift, but easy for two people, so probably
around 100-120lbs. I've run it at 4.5kva on a jacobs ladder. Still
gathering parts for a larger Tesla coil.
Wish I could find more 120mA @ 12,000volts monsters like I use on my
little coil.
CP8071
----- Original Message -----
From: "Neal Namowicz" <neal@xxxxxxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Thursday, November 12, 2009 6:51 AM
Subject: Re: [TCML] multiple miniature transformers
This is definitely one I have a little experience with. I started
accumulating nst's a while ago, and then began tying them together. At
the moment, I'm up to 6, 9kv/30ma. I have them mounted on a 2' x 2'
platform with casters. As my daughter's boyfriend and I were lugging it
up the basement stairs for halloween, I too wondered why I just didn't
get a small pig. However, there's still the issue of current control that
I don't have to deal with, as I would with a pig. I would stick to using
my variac, rather than switching them on individually, too. I prefer to
ramp the power up slowly, just in case. I'm only using a safety gap for
them at the moment, but I try to be conservative and not push them beyond
80-85% on the variac.
Neal.
----- Original Message -----
From: "Paul Brodie" <pbbrodie@xxxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Wednesday, November 11, 2009 12:33 PM
Subject: Re: [TCML] multiple miniature transformers
Wouldn't 10 neon sign transformers and associated equipment be just about
as bad as lugging around a pole pig or maybe even worse?
Paul
Think Positive
----- Original Message -----
From: Chris Rutherford
Hi All,
A couple of years back I made a TC powered by 4 parallel NSTs,
providing 1KVA, which worked reasonably well. I was thinking about
extending the idea using 10 larger (identical) NSTs to provide 10KVA.
I would individually protect each NST using something like a Terry
filter, and also place a switch on the mains side of each transformer,
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