>    When you ran 3 amps through 30 ga wire (33 cir mils/amp)
>    did you melt the insulation?

(Hmm.  Have to retry on a piece of wire that has insulation.  fiddle,
fiddle.)

No melted insulation.  "Slightly" warm to the touch (at 3A.)

    >This is why bench supplies have adjustable current limiting.

Yeah.  I think I bought my benchtop supply primarilly for tweaking assorted
types of rechargable batteries, but it has turned out to be quite a useful
piece of test gear in a number of unexpected areas.


    For example, if you only expect the circuit to draw 500 mA, don't
    set the current limit to 3 A.

But this is one I hadn't thought of!  Don't forget that any time you go into
current limit, you voltage is going to drop and (probably) do all sorts of
weird things to your digital logic, so you have to start over...

BillW