OMG - and the lights went on!

I couldn't resist. I have 3 backup instruments - ALT, AS, AI, and all three have the UMA Electroluminescent rings on them. To make sure that I wired them correctly to the transformer, I hooked up 24v and ground to a 0-30v .5amp variable power supply and flipped the switch... Didn't let the smoke out, and varying the voltage caused the rings to dim... exactly what they are suppose to do...

Yeah, one more thing done, only a few more to go on the panel.... why did I wait so long to do this, it's actually been a bunch of fun and challenge...