I was using my Dentron Clipperton L today and all of a sudden I noticed smoke coming from case. I shut amp off and looked inside it had a burnt smell but I could not see any signs of places where burnt. Touched transformer and it was not hot anywhere. Tubes looked good. Band switch looked a little discolored. I jumperd case switch and turned amp on all the voltages are running normal as before and keyed amp up and making same amount of output power. I do not know what to check since it is working?? I put heat gun on transformer and hottest it got was 118 degrees??? Any ideas or run it till it burns up?? I also would like to know where I can get a transformer for it as a spare. Thanks