I need help troubleshooting an instrument. I have a lampbase for a 360q-6x12 from altman that is being snarky. It will light when I plug it in directly to the wall, but not when I try to plug it in to its 3 pin circuit or bing when plugged into a GAM check. I have checked the lamp and the connections to the 3pin. I would've checked the end going into the lamp housing, but it is masked by porcelin (the wires go directly into its porcelin housing). It looks like the posts inside of the lamp housing mabey a little "smokey." But I can't really clean these well. Any solutions...other than just replacing it.