Re: Paralleling NSTs

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

Go ahead and parallel them.  The secondary has such a huge inductance that
your meter probably isn't the most reliable means of measuring it.

If you want to do some tests, measure the open circuit output voltage (put
in 1 or 2 VAC instead of 110, so you get a reasonable voltage out that won't
result in instant meter destruction)... it should be roughly the same (say,
within 5%)...

You could also wire the primaries in parallel, excite them both with 1 Volt
or so.  Then measure the voltage difference between the wires that you'll be
pairing in use.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, July 20, 2002 10:01 PM
Subject: Paralleling NSTs


> Original poster: "Steven Ward by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<srward16-at-hotmail-dot-com>
>
> Hello,
>
> Awhile ago i wrote about my NST rebuilding plans.  Well now i have 2
awesome
> 15/60s and want to use them together for a 15/120(im starting to drool
over
> the expected 5 footers).  But there is a slight problem.  While they are
> both France 15/60 trannies, one transformer reads 3Kohm for each
secondary,
> and the other tran reads 2.6kohm per secondary.  Is it still possible to
run
> these together??  I seem to recall something about chokes used to wire
them
> up.  It would be a real shame if i couldnt make a real sweet PSU form BOTH
> of these transformers.  Well i always have that set of 4 15/30s to
> rebuild(also france) if it has to come to that.  I really need some help
> from someone who knows his stuff with NSTs.  Thanks guys!
>
> Steve Ward.
>
>