[Elecraft] OT: Regulator choice for power supply

[Dave Mueller]

Hi,

I'm going to be building a power supply for a K2.  I have two choices for regulators from the junk 
box:  an LM338, T03 5A adjustable regulator, and a complete PCB based on the LM723 with external 
pass transistors.  I have a torodial transormer that can supply 3A continous.

I'd like to use the LM723 board, but I'd also like to save it for a more complicated supply (like 
for the KPA-100).  For some reason, I don't want to trust the LM338, its just too simple... 
Performance? Reliability?  I can't quite grasp the possiblity that I can get a decent supply with 
less than 10 parts!

Thanks & 73,
Dave AA3EE
no s/n yet!