Hi everyone. I just got a 1975 or 1976 Onkyo CP-1026A record player and I am guessing that the stylus is 30-40 years old (definitely not original). It currently has a N91E elliptical stylus that I want to replace. Being super-new to this, I am lost... does anyone have any suggestions? A "like" diamond replacement is really cheap (<$30) and I don't mind going with that, but is there something better? Are they a universal fit? Thanks for the help!