[TCML] large toroid/new tertiary

[Matt Siri <mattisonsiri@xxxxxxxxx>]

    I recently acquired a rather large spun aluminum toroid of 33in x 9.5in.  
After placing this on my tertiary coil (my magnifier system is outlined in an 
earlier thread (http://www.pupman.com/listarchives/2011/Jun/msg00136.html) (9kV 
120mA input) I watched as my coil was engulfed in racing arcs.  After lowering 
my toroid and seeing more racing arcs, I switched to a 26 awg 4.5in x 16.75in 
tertiary.  This too experienced the same problem until the toroid was lowered; 
then the problem was that there were arcs between the toroid and the 
transmission line.  This prompted the change to a 23 awg 6.5in x 24in tertiary.  
This worked very well, allowing the max arc length to be reached; however, a 
rather large hot spot ended my run.  Now I am considering building a tertiary of 
well-insulated (not enameled) wire.  I also relize that this may lead to the 
reconstruction of the entire system.  If this were to occur, I would continue to 
use the pancake primary and secondary configuration as insulating the two is way 
too easy.  Any suggestions (bare in mind that I have a 6 9-60s and I may look 
for a PT)?
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