Phonograph needle, Electro-Voice, EV 3310DS for Pfanstiehl S854-DS73, S853-DS73, M854-DS73, M854-DS77, replaces Tetrad 13, 33, Tetrad E2d and more. Replaces: Tetrad G1D, Astatic N804-sd, Pfanstiehl M854-DS77, Pfanstiehl S854-DS77, Pfanstiehl L854-DS77, Pfanstiehl M854-DS73, Pfanstiehl L854-DS73 L-855-DS73, Pfanstiehl S854-DS73, EV 3391, EV 3391D, Tetrad 10D, 10S, 11D, 11S, 12D, 12S, 22D, 23D, 31D, 31S, 43D, 52D, T1LD, T1LS, T2MD, T2MS, T3MD, T3MS, TC11, TC11MO, T30MD, T30MS.