That old and you will hear tremendous improvement even if all you do is upgrade the rectifier diodes. Unless he uses tube rectification, in which case clean pins and call it good. But probably not, and some fast hexfreds will do you wonders.
That's the most cost effective thing you can do. Caps will be another transformation, but cost? The sky is the limit. Price em out, you can spend as much as a whole new component real easy.
People can recommend what they want. No matter what they say its their experience, until you do it yourself and see. So I would recommend try diodes, then try a few select caps. As long as you like the direction its going, keep going.
That's the most cost effective thing you can do. Caps will be another transformation, but cost? The sky is the limit. Price em out, you can spend as much as a whole new component real easy.
People can recommend what they want. No matter what they say its their experience, until you do it yourself and see. So I would recommend try diodes, then try a few select caps. As long as you like the direction its going, keep going.