Thank you for your advice about changing out caps, risistors and the 2 diodes. I hope you don't mind a rather specific question. I have the schematic and, since I don't have the necessay skills, plan to have the work done locally. I will have to give the rather specific instructions. What brand of cap should be used in the power supply and output. Which resistors should be replaced and with what brand. What type of diode should be used.