Hello Brad.
It depends on the caps. Electrolytics age - 40 years is very old for such a cap. I would definitely replace all electrolytics with new ones at this point, especially the power supply caps which come just after the rectifier. Many brands: I like EPCOS for the power supply - a German collaboration with local labour, I understand. Be sure and get new supply, because there was a problem with some manufacturers going cheap, or so I heard. Some amps can take more capacitance in the power supply, but others can't - depends on design. If you can't buy the expertise, replace with the same values (in microfarads). Make sure that temperature rating is at least as high. Digi-Key sells and has good service.
I have also read that Silmic by Elna are very good caps. Choose caps that have as low an ESR as possible, and don't stint the expense - you will hear it.
For caps in the signal path, you might want to upgrade them if they are electrolytic, improving to polypropylene or even styrene - but the problem will be space. Do NOT change the capacitance (in microfarads). Parts Connexion sells, and has good service.
I have no connection to either Digi-Key or PartsC.
Don't try to do it yourself unless you understand about stored energy discharge, as in caps and chokes. It's not hard to learn, just get a good tech to show you, but it can be lethal if you don't.
It depends on the caps. Electrolytics age - 40 years is very old for such a cap. I would definitely replace all electrolytics with new ones at this point, especially the power supply caps which come just after the rectifier. Many brands: I like EPCOS for the power supply - a German collaboration with local labour, I understand. Be sure and get new supply, because there was a problem with some manufacturers going cheap, or so I heard. Some amps can take more capacitance in the power supply, but others can't - depends on design. If you can't buy the expertise, replace with the same values (in microfarads). Make sure that temperature rating is at least as high. Digi-Key sells and has good service.
I have also read that Silmic by Elna are very good caps. Choose caps that have as low an ESR as possible, and don't stint the expense - you will hear it.
For caps in the signal path, you might want to upgrade them if they are electrolytic, improving to polypropylene or even styrene - but the problem will be space. Do NOT change the capacitance (in microfarads). Parts Connexion sells, and has good service.
I have no connection to either Digi-Key or PartsC.
Don't try to do it yourself unless you understand about stored energy discharge, as in caps and chokes. It's not hard to learn, just get a good tech to show you, but it can be lethal if you don't.