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Re: More Tuning/Debugging

Quoting Chuck Curran <ccurran-at-execpc-dot-com>:

> Another Thanks to Bert, Richard, Dan and Ed for the advice on
> my coil problems.  It's helped me to go another step forward on
> my Tesla education.  

Hey, no problem. Advice is cheap here.

> I did succeed in getting things back together and also raised 
> the primary 1/2".  I ran the system Friday night and it
> really worked better than ever.  Today I raised the primary to
> 1" above the original point and I was planning on running 
> again.

Since your previous post indicated a problem with overcoupling, I
assume you actually raised the secondary and decreased the
coupling coefficient...?

> Another item has been noticed.  I have a 30 foot flexible
> power cord that runs into one of those dryer outlet type plug 
> housings, which I mounted on the outside of my power box in 
> order to plug the welder into it.  It is wired so that when I 
> plug in the welder, it is in series with one of the hot leads. 
> I jury-rigged a connection from this plug housing by running 
> out two number 16 leads to my stove elements for the resistive
> part of the setup.  These two number 16 leads run out through 
> the same opening that the incoming 240 VAC power line goes in. 
> Arcing has occurred from that area, leaving a brown smokey mark
> on the 240 VAC power cord.  Apparently the RFI filters aren't 
> stopping enough RF as far as I can tell.  I plan to rewire this
> setup before another run.  I couldn't find a acceptasble plug 
> and socket today, maybe tomorrow. 

Not uncommon. Sometimes the RFI filters work fine, but the wiring
picks up sufficient RF from the field flux that arcing between
conductors becomes a problem. I have seen this more than once
where conductors became highly charged and began arcing, even
though they were not connected in any fashion to the coil,
controls, or the mains... Like sections on my garage door, metal
track lighting reflectors (ungrounded), stored spools of wire,
etc.. 

Richard Quick


... If all else fails... Throw another megavolt across it!
___ Blue Wave/QWK v2.12