Tools and testing

I'm somewhat of a tool hound. I like test and measurement gear... and this is something that comes in handy at times.Over the weekend I was helping to characterize a peltier cooler with a power supply.We then tried to diagnose a NFC reader and Arduino with the scope and a logic analyzer. I think I had things hooked up too close to the antenna and was picking up too much of the power that the board was supplying.But then things start to get to things I can't test.A power supply for some LED lights decided to die after I set it to the correct voltage. I'm guessing a capacitor gave up the ghost from being run over voltage for months.But I can't test it.I don't have a way to provide a good load to the supply.A tool I don't have.A tool I'll need to get... to be able deal with things like this.Oh... and things like the USB power supply I'm working on.  :-)