[sdradioman]

Has anyone ever had the dial lamp on their model 90 cathedral start to alternate between bright and dim after about a half hour of operation? I bought this 90 that had just been restored electronically back in January. The gentleman I bought in from spent $375 getting it up and running by a member of the Colorado Antique Radio Club. When I bought it the seller turned it on and it played beautifully. It then took a 10 hour ride from Colorado back to South Dakota. I got it home and it plays great, but I noticed that after about a half hour of operation the dial lamp wasn't as bright as it normally is. It seemed to get dim and then go back to being bright. It didn't seem to change with volume or changing the station. I really hope that the power transformer isn't going bad. Could it be a tube starting to short out? Any help would be greatly appreciated because I spent quite a bit of money on it.