I have a LUXO Magnifying lamp that after years the ballast finally went bad, checked the coil and it was open. Ordered one from Luxo same kind and specs, hooked it up and nothing, not even a hum. Maybe the miniature starter hard wired to the ballast is bad? I checked the old one and got 2 ohms connected, haven't checked the new one yet. I don't believe there is any polarity involved in hooking up these simple 2 wire ballasts, am I wrong? Maybe I just got a bad ballast from them. Checked it and got 23 ohms with starter connected but, I have no idea if that's what I should get. Any help is greatly appreciated.