(!!!!) (Best Overall Pair) 310A Western Electric large punch plate NOS 1973 and 1976 same build (5.4ma and 5.8ma)
(!!!) (Best Value Single) 310A Western Electric large punch plate NOS 1973 tilted glass (5.8ma)
310B Western Electric NOS (sold out)
Ceramic top cap for 310A / 328A / 807 / 837 / VT61 (5 in stock)
Millen #36002 ceramic top cap for 310A / 328A / 807 / 837 / VT61 (4 in stock)
