(!!) (Best Pair) 412A Western Electric NOS “”D”” getter halo 1959 (51-52/40 x 2 tubes)

1 pair) 412A Western Electric NOS “”D”” getter halo 1959 (5952)

1 tube) 51/40 and 52/40

1 tube) 51/40 and 52/40

6754 Bendix=412A Western Electric

Matched on TV-7D/U