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Seems like the dash lights on my TR6 don't get bright enough. I reached down through the ashtray and the back of the rheostat switch is very hot to the touch when the lights are on. Is the switch on its way out? I can turn the switch to on-off and rather dim only. It does not brighten the dash lights up and down anymore. When it is turned to the off position it cools down completely. It was working okay last week when I drove the car at night. I can't think of anything else that I have done electrically except put a new bulb in the glovebox socket. I took the bulb out and no difference, so that was not a factor.