[Nick3092]

The 60 is a bad example of that question. As I recall it went through some major changes, like removing a trimmer and adding a wave trap that would be hard to bring an older run "up to date". But as far as some of my other Philcos, I have made updates based on the run change notes - if it made sense. Like they changed a resistor value to improve oscillation or something. But not in cases where it would require adding some parts that would be hard to source or no apparent benefit.

Really it's up to you. But if it's simply changing the value of a resistor or cap to improve performance or correct an issue per the notes, I see no harm in doing so. Especially since I like to use my radios, not just park them on a shelf.