Re: [TCML] First ever Pig SISG.... inadvertently

[FIFTYGUY@xxxxxxx]

In a message dated 2/4/08 8:41:40 P.M. Eastern Standard Time,  
bartb@xxxxxxxxxxxxxxxx writes:

 

>Yipes!!!

>

>$23ea at Digikey and $32ea at Newark!



I think somebody posted that if you go to IR's  site, they show you who has 
their stuff the cheapest.
    Besides, nobody really pays that much for those  things. 
 
    We need to do a group buy!


>Ok, lets see. To populate all my boards I need 24 x $23 = OUCH, that  

>hurts to think about!


*NOW* do you guys appreciate the work I'm doing  trying to intentionally blow 
this thing up to find the weak points?
    Terry Fritz blasted a SISG trying to switch an  800 Joule cap for 
duplication of that ball lightning experiment (well, it  worked *once*!). If I wanted 
to make a disposable semiconductor switch, I've  got plenty of hockey puck 
SCR's to sacrifice. But then you're looking at a  blast shield for the switch as 
well...


>So Phil, how many boards are you using?



    Six of Mark Dunn's SISG4 boards. So 24 IGBT's  total. I could probably 
get away with another, and that would also bring  the BPS down and the bang 
energy up. I've got the components to do it, I think I  need to buy another board 
or two from Mark.
 
    Yes, Bart, I've got plenty of pics and video now. I  just have to edit 
and post it.
 
-Phil LaBudde
Center for the Advanced Study of Ballistic  Improbabilities



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