Well, tonight was to be my first night ever making darkroom prints. I read up on what I need to do and waited for my paper and chemicals to show up today. They arrived, I made two test strips, I was just getting the hang of things and went to try a third test strip. I put the paper down, masked most of it, pushed the button on the timer and..... Nothing. Suddenly, no light. I checked to make sure the head wasn't set to the 'white light' setting the locks it from turning on. Nope. I checked the timer and all connections and dials and levers. Nothing I did could make the lamp turn back on. It was odd it didn't just burn out in the middle of an exposure but was working fine and suddenly decided to not turn on when I attempted the next exposure. Anyway, I then pulled the bulb out but it doesn't LOOK burned out. The filament looks fine. How would you recommend I test the bulb to be sure it's burned out before I order a replacement? Is there ANYTHING else that I should check on the enlarger? Beseler 23CII with the Dual Dichro color head. Is there a fuse or anything that may have blown?