Re: rectified nst's and hookup

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

Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-uswest-dot-net>" <evp-at-pacbell-dot-net>

Tesla list wrote:
> 
> Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>
> 
> Hi Marc,
> 
> Calm down buddy! :-))
> 
> Last weekend we quickly whipped together a NST to DC converter here out of
> spare diodes for a 20kV can crusher.  So the technology is a proven one ;-))
> 
> There are a few things to check if you are not getting any output past the
> bridge.
> 
> 1.  Check for a spark at the NST alone to be sure it, the variac, and AC
> are all working to that point.
> 
> 2.  Carefully check to be sure all the diodes are in the proper direction.
> 
> 3.  Carefully check "again" to be sure all the diodes are in the proper
> direction. :-))  Really carefully, trace along the paths and insure that
> the cathodes are all going toward negative and the anodes are all going
> towards positive.  If there is an error, either the current will not flow
> or the NST will just see a short.
> 
> 4.  The diodes may be bad :-((  If they are shorted or leaky for some
> reason, then it won't work.  You can take them one by one with the output
> of the NST set to a voltage that will just make a small arc and see if they
> pass current in one direction and block in the other.  I assume they "are"
> obviously diodes and not some other weird part.
> 
> 5.  Take a picture of the setup and send it to me and maybe we can see
> something that is wrong.
> 
> 6.  There is no 6...  It is something that has just "got to work" if it is
> wired up right and the parts or good.
> 
> I will also be working on my HV rectifier pretty soon too but I think we
> can get yours working.  Don't worry, it will work once we find the trouble
> spot...
> 
> Cheers,
> 
>         Terry

	I'd add just one thing to that.  DON'T FORGET THAT THE CENTER OF THE HV
WINDING IS CONNECTED TO THE CASE!!!!!!!!!!!

Ed