Well folks, once again, the members of this site show to be a great help. Thank you so much for your quick reply....and now, the REST of the story. By mistake I have hooked up high voltage(136VDC) to a low voltage heater supply(6.3VDC). Yipes! is right, and so far, I have changed out the voltage regulator and two other caps. I decided while I was at it, to upgrade these caps to a higher temp. rating. More on that later..