Re: First lights with MMC successfull, but NST is a one-legger now

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Goinbonkers-at-aol-dot-com>

Hey Andy, 
    Sounds like you burnt out or carbon tracked one of the HV legs on  your
NST.  If you have a multimeter(or an ohmmeter) you can get an idea.  If you
read infinte resistance, you burnt the wire.  If you read a normal to low
resistance,  you carbon track shorted the output.   In either case, you will
have to unpot it and correct the problem.   If you burnt the wire,  hopefully
it occured near the outer winding and you can unwrap it until you find the
break.  Most likely you carbon tracked it and just need to unpot it and then
immerse it in a container of mineral oil. 
Good luck, 
Mike 


>
> Hello All, 
>
>    The past few days i've been working with my new MMC: 1 string of 15 geek 
> caps.  No bleeders yet, but i've been careful in working with it after it is 
> run (NST seems to discharge them).  Anyway, I was getting a very spastic 2 
> footer from a break out point with a small gap setting.  I then wanted to see
>
> if I could get the bang size up a little.  I hooked up all of the copper
> pipes 
> there are in my gap.  It was VERY loud after this, and got multiple 18
> inchers 
> even with the breakout point.  I tried to keep my voltage low for these runs 
> for fear of killing a cap or the NST.  I had the input voltage at about 120 
> volts when the gap started to act weird.  I turned it off, then turned it
> back 
> on just out of curiosity.  It ran weird again and then there was nothing. 
> Apparently, the fan on the gap quit.  I now blame that on RF getting to the 
> electronics inside (brushless DC computer fan).  I checked the NST and I get 
> full voltage on only one of the legs and nothing on the other.  What
> happened? 
> Was it the fan's failure to quench the gap.  The NST is a 12/30 Jefferson 
> Electric.  You can see my setup at my webpage in my signature (the 4" coil). 
> Any help is appreciated :-) 
>
> Andy, KB3EWY