I got my Philco M24 Phonograph all repaired adjusted and lubricated. Now I need a cartridge. The original cartridge mounts fore and aft. I have some Pfanstiehl 51-1 cartridges that I use in my rca 45 players and other phonographs. However, these mount right and left not fore and aft. Any input on what to use and where it might be purchased. Thanks.