I have a stack of Heathkit, Drake and Yaesu HF radios I am getting ready to start going thru. Cosmetically all are in excellent condition. My question regards capacitor replacement. Is it better to purchase replacement capacitors individually thru, say, Mouser, or buy the kits thru Heathkit Store or Harbach. I also understand their is a thrid opinion that says "if it aint broke, dont fix it - in other words, you can create more problems than you can solve by replacing the electrolytics, paper capacitors, etc. by rote. However, I am dealing with radios approaching 50 years of life, so how much can you expect out of a lowly capacitor. I do have a great Variable AC Supply with current meter, so I can bring the units up slowly and monitor their current drain. Thanks for your help and suggestions.