Questions re wear and tear on trumpets, I'm looking at, right now, a couple of 'em that I've owned for say 5 to 25 years, Bach 37, Benge 1970's or so, a few others. I try to keep them in good shape, periodically with a cleaning, drying, oiling ... usually one gets used for a good long year or so, gets cleaned up and goes to sleep for a while.
Had one valve-aligned a few years ago...
Should I be replacing springs ... every thousand hours? every 500 hours? different types of springs material? Think I know the answer to this one ... probably should valve-aline again the one that had it, and do the same for the others.
It seems that often, the horns valves are FINE at home, and then "act up" at other locations; and this has been going on for years!