The 3 technique is the D-Tackle that is lined up on the Outside Shoulder of the Right Guard.
The 1 technique is the D-Tackle that is lined up on the Outside Shoulder of the Center.
It is a defensive end who lines up outside the shoulder of the offensive tackle. There are 9 techniques, a five is basically a typical 4-3 defensive end.
Depending on the setup its either 3-4= Defensive End/Nose Guard/Defensive End 4-3= Defensive End/Defensive Tackle/Defensive Tackle/Defensive End 5-2=Defensive End/Defensive Tackle/Nose Guard/Defensive Tackle/Defensive End
Switching from a linebacker to a defensive tackle require two different techniques. It is important to learn and master the technique of the position you would like to play.
about 6"3"
Dennis Johnson - defensive tackle - died in 1997.
Kevin Brown - defensive tackle - was born in 1985.
Lawyrence Taylor (retired) is the best defensive tackle in the NFL.
David Howard - defensive tackle - was born on 1987-##-08.
Tyrone Williams - defensive tackle - was born on 1972-10-22.
Larry Brown - defensive tackle - was born on 1984-10-15.
Bobby Wilson - defensive tackle - was born on 1968-03-04.
Charles Johnson - defensive tackle - was born on 1957-06-29.