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GB Thread for Salas SSLV1.1 BiB shunt reg

Tea, sorry for stupid question, I read the link above and just to clarify: I need mini +IRF and mini –IRF kits plus set of pcbs to make a +/– 30V PSU, right?
And why there are two POS boards, why you need two pos and only one neg? 🙂
 
Yes, you need one IRF+ and one IRF-

We build the regulator based on estimated demand for usage on one versus the others.
I still believe it was a good choice based on # of kits ordered per board.

So most people will build positive regs from a purely statistical POV.