Dead NST

• To: "'Tesla List'" <tesla-at-pupman-dot-com>
• Subject: Dead NST
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Fri, 27 Feb 1998 22:57:57 -0600
• Approved: tesla-at-stic-dot-net

----------
From:  FutureT [SMTP:FutureT-at-aol-dot-com]
Sent:  Friday, February 27, 1998 8:33 AM
To:  tesla-at-pupman-dot-com
Subject:  Re: Dead NST

In a message dated 98-02-26 13:52:54 EST, you write:

<< 
> Hi all,
> I just picked up a 15 Kvolt 30 ma transformer from a sign shop. They
> gave it to me as they had it marked with one side bad.  I assumed from
> reading this list that it was probably shorted from tracking.  When I
> got it home and checked it with a meter, that side was open.  I poped
> the top and it is filled to the top with tar.  Is it worth trying to
> salvage this thing, by getting the tar out, when a side is open?
 
> Thanks,
 
> Russ >>

Russ,

An open winding seems like a bad sign to me.  I needed some "E"s
one time, so I opened 4 NST's that had open windings on one side.
All the NST's had one secondary coil burnt to a crisp.

John Freau

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