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Archive Repost - How to bring a dead NST back to life


Hi All,

I came across this post to Chip's Telsa list while reading through
the May 1997 archives. I haven't seen anything like this recently
on any list or separate zipped article and thought it could stand
to be re-posted. 

When my NST finally dies (not if) I'll try this method first.


--- begin archived May 1997 message ---


Subject:   Kitchen oven
  Date:    Thu, 01 May 1997 19:18:28 -0700
  From:    Gary Weaver <gweaver-at-earthlink-dot-net>
    To:    tesla-at-pupman-dot-com


I have found by putting a neon transformer in the kitchen oven 
and melting the tar it brings bad neons back to life.  It removes
the carbon tracks that short the neons out and it removes the 
cracks in the tar.

Test #1  I put 2 Jefferson Electric neons in the oven at 300 
degrees for 3 hours.  The tar melted and was a very thick liquid. 
I did not remove the case or the top cover.  After 3 hours the hot 
tar expanced and some of it extruded out around the high voltage 
insulators.  There is a small amount of smoke and a tar smell. 
I let it cool for several hours then tested them both.

15K 30 ma date 6911 was shorted on 1 side and now it works 
as good as new.
15K 30 ma date 8704 was shorted on 1 side and now it works 
as good as new.

I connected them one at a time to my TC and tested them.  I ran 
6911 for 5 minutes non stop and 8704 ran for 15 minutes non 
stop also.  

Test #2  I put a Luminous neons in the oven at 200 degrees for 
3 hours. The tar in this neon must be different than the tar in
the Jefferesons because it melts at a lower temperature.  When
I removed the neon from the kitchen oven I could hear and feel
the liquid moving inside the case.   I did not remove the case or 
top cover.  There is no smoke and no tar smell.  I let it cool for
several hours and it tested good also.

12K 30ma date 7106 was shorted on both sides and now it works
as good as new.

I connected it to my TC and ran it non stop for 15 minutes.

Test #3  I put a Jefferson Electric and 2 Franceformers in the 
oven at 200 for 2 hours.  Increased the temperature to 250 for
another hour.  The tar in the Fransformers melted and I removed 
them from the oven.  Increased the temperature to 300 for
another hours.  The tar in the Jefferson neon will not turn to 
liquid. Some of the hot tar extruded out around the high voltage
insulators on the Jefferson and is still very stiff at 300 degrees. 
There is no smoke or tar smell.  I let them all cool for several
hours and tested it.

15K 30 ma NO date Jefferson was shorted on 1 side and is still
shorted on the same side.  
15K 30 ma Fransformer was shorted on 1 side and now it works 
as good as new.
15K 30 ma Fransformer was shorted on 1 side and now it works
as good as new.

I ran each Fransformer on my TC for 10 minutes each non stop
and they both are doing fine.

Looks like if the tar in a neon can be melted in the case the neon
will come back to life again.  Naturally this will not work on a
secondary coil that is fried.  But it has works 5 out of 6 times on
neons that probably shorted out from carbon tracking.

Gary Weaver

--- end archived message ---

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