conical — low ross
3-1/8″ — 25/58 male contact
3-1/8″ — N f
3-1/8″ with 4 1-5/8″ outputs
EIA 3″1/8 — EIA 4″1/2
EIA 3″1/8 — EIA 1″5/8
EIA 3″1/8 — EIA 7/8”
