Phonograph replacement cartridge with stylus, Astatic 1203d, replaces: Astatic 1204D, Airline 60-146, 60-144, Tetrad 6-a2d; a; c, V-M 42818-d. Uses N794-sd needle. New old stock. Search my store titles and descriptions. Enter your needle no., cartridge no., or brand name. E-mail for further help.