The ornamental design for a record turntable, as shown and described.
FIG. 1 is a top plan view of a record turntable showing my new design;
FIG. 2 is a front elevational view;
FIG. 3 is a left side elevational view;
FIG. 4 is a rear elevational view; and
FIG. 5 is a right side elevational view, with structure located on the right side of the turntable, which structure appears in FIG. 3 (1) between the cartridge and the record support surface and (2) between the cylindrical shaft of the tone arm and the record support surface, omitted for convenience of illustration.