Agree with the other responses. Clean the new records while you wait (yes, even new vinyl must be cleaned). It will feel like you're playing them but you won't be doing any damage!
If you MUST be impatient, replace the stylus on that old rig or at least make sure it's perfectly clean. Play some old records first to test that VTF and other setup parameters are correct. A mistracking stylus can destroy a record with a single play, no point experimenting on the expensive stuff.
If you MUST be impatient, replace the stylus on that old rig or at least make sure it's perfectly clean. Play some old records first to test that VTF and other setup parameters are correct. A mistracking stylus can destroy a record with a single play, no point experimenting on the expensive stuff.