>> These would not all be in all supplies but would be in a >> premium bench supply. >> 1 Voltage viewable and settable with DC output turned >> off. Extremely useful. >> >> 4 Current limit settable with output off (just a >> "shorting button upstream of the DC out switch will >> achieve >> this. > > A cheap solution to this is to add a controlled relay in > series with the power supply. Or an external switch. > ;-) Yes. Many of the ideas that I suggested have "cheap solutions". What Jinx is trying to do is to integrate all his psu needs in one module so the various cheap solutions get integrated therein. One useful "cheap solution is accessing a supply and putting an external socket in the main current path and inside the voltage feed loop. If you short this the supply operates as before. If you open circuit it an place an ammeter across it you have an output meter that essentially does bot affect output voltage when current is varied. Whereas, adding an external series meter adds typically ohms to 10 ohms plus to the supply output resistance and makes variable current constant current use annoying. Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist