Re: [TCML] SISG First Light

[futuret@xxxxxxx]

Bart,

Congratulations on your initial results.  I have the SISG boards and 
IGBT's
but have not done anything further yet.

John


-----Original Message-----
From: bartb <bartb@xxxxxxxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Sun, 19 Oct 2008 3:23 pm
Subject: Re: [TCML] SISG First Light


Hi Miles, 
 
I found the problem and she's working fine now. The variac ballast was 
ok also. I do need to replace the brushes however. Running the coil 
this morning, I realized the radiated field was lighting up all the 
lights, and then "duh" struck me. I was simply not breaking out. 
Through a 1 meter ruler on top of the 9" x30" toroid and then it broke 
out fine. Coupling is pretty low and I haven't tuned yet. So today I'll 
make some resonant measurements and dial in the coil. I may insert the 
6th SISG board also just to get the voltage up a bit. 
 
Take care, 
Bart 
 
 
miles waldron wrote: 
> The first time I ran a SISG coil I did something similar. My variac 
started 
> to whale smoke almost immediately. I think when the voltage is too 
high, the 
> SISG board just conducts, and eats as much power as the ballast will 
let 
> through. Mine is wired as you have described, with the SISG in 
parallel with 
> the power source. All I had to do was drop the voltage and all 
returned to 
> proper
behavior. No damage was incurred to the SISG boards. 
>  
> Miles Waldron 
>  
> _______________________________________________ 
Tesla mailing list 
Tesla@xxxxxxxxxxxxxx 
http://www.pupman.com/mailman/listinfo/tesla ;

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla