Did you blow out your current indicator lamp?
I didn't check that but will this morning. I had blown the bulb I usually run sometime ago so had a much heavier (hi MA) in the hole just to keep my fingers out of it. There is a good shunt behind it so the Amp runs fine with no bulb anyway. The Source, our radio shack stopped selling the bulbs last fall. I wish I had bought a dozen of so as I find them very handy.
The PS is very stout. Does even get warm even after a long transmission.