[TCML] July 4th and why not to be in a hurry

[bartb <bartb@xxxxxxxxxxxxxxxx>]

Hi All,

On July 4th, I ran my coil designed for my SISG circuit, however, I did 
not run it as an SISG. I ran it with my VFD RSG instead. I had 1 day to 
install the motor, stationary electrodes, wiring, etc... I was in a 
hurry. I finished the basics Thursday. About noon on the 4th, I set the 
coil and components out in the driveway. I didn't do a test run until 
about 5pm. Two problems occurred. Ballast variac was arcing. Found one 
of the terminal wires arced to the variac chassis. Fixed it. Then 
shorted the feeds at the coil base. Fixed that. I ran it for about  
seconds after and left it until dark.

I ran it 3 times during the fireworks and all. The 2nd run was not so 
good and this is what I wanted to show you. It just so happened that my 
buddy down the street showed up for that particular run and brought his 
video camera. So I was able to at least get that run on video. It's 
probably good to identify visually when a coil is not well tuned, is 
running poorly, striking the primary way too often (poor field control), 
and just all around lousy performance (what we want to avoid). So I have 
a video of sorts for that particular run if interested. In the last run 
of the night, I turned the voltage up and increased power enough to get 
past most primary strikes, but there were still a few (longer sparks and 
some ground strikes, but still not up to par).

The following run is a medium power setting which is not always good for 
the coil. Just enough power to play havoc with the primary.
On a positive note, you can at least hear the VFD rotary. Normally, when 
control is good, I have more fun just fooling around with rotary speed. 
But not so much this time. Of course, friends and neighbors watching had 
no clue how bad this run was.

http://www.classictesla.com/july4th.html

Take care,
Bart
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