Re: [TCML] Should I repot this NST?

[Sfxneon@xxxxxxx]

Steve,
 
That looks like the bonding wire that goes from the core to the case. Just  
be sure it stays intact, and it'll be okay. If you have a heat gun, or a 
propane  torch with a flame spreader tip, you might try gently heating the surface 
of the  asphalt to see if it will flow enough to fill in the cracks. Otherwise, 
don't  mess with it if it works now. You might keep the lid off to eliminate 
the  possibility of an arcover to it, and keep your spark gap set a little 
closer to  keep the voltage down until your coil is in tune. 
 
Tony Greer
**************
 
In a message dated 9/20/2008 10:11:31 A.M. Central Daylight Time,  
shobley@xxxxxxxxxx writes:
Thanks for feedback.

I did notice one bare  wire running along the top of the tar (visible in one 
of the pics). I haven't  tested this to see where it comes out, should I be 
concerned about it?
I was  thinking of melting some wax and pouring a thin layer over the top to 
hold  everything together, bad idea?

Steve



2008/9/20 Stephen J.  Hobley <shobley@xxxxxxxxxx>:
> I got hold of a 12kv 60ma NST from a  local sign company. It's pretty old
> and the potting is a bit cracked, as  you can see:
>
>  http://www.flickr.com/photos/20929480@N03/sets/72157607383559345/
>
>  It passes the "arc to case" test on both sides without any issues, but I
>  was wondering if I should repot/remelt this?
>
> I almost cranked up  the grill, but then I read how you can overcook the
> potting on towards  the base if not careful.
>
> I did melt some of the bigger cracks  closed with my 'pocket blowtorch'.
>
> Steve
 



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