BTUR-101 (0-70 rpm)

BTUR-102 (10-70 rpm)

BTUR-103 (10-80 rpm)

BTUR-104 (10-80 rpm)

BTUR-201 (0-80 rpm)

BTUR-202 (10-70 rpm)

BTUR-203 (0-80 rpm)

BTUR-204 (10-70 rpm)

BTUR-301 (18 rpm)

BTUR-302 (10-40 rpm)

BTUR-303 (1-99 rpm)

BTUR-304 (20 rpm (fixed))