Just get the Radio Shack 23 amp PS for it is the same one as the CE for much less then CE charges. The Radio Shack and CE are both made by Samlex <sp anyhow. I have had this PS for quite awhile and have run three Pulsars and two Novak trays off of it with a distribution block with no issues. I just remove the cover and blow the dirt out of it and all is good.