(!!) (Best Pair) 412A Western Electric NOS "D" getter halo 1968 (52-52/40 and 52-53/40)
$ 149.99
1 pair) 412A Western Electric NOS "D" getter halo 1968 (6852)
1 tube) 52/40 and 52/40
1 tube) 52/40 and 53/40
6754 Bendix=412A Western Electric
Matched on TV-7D/U
See more: vacuum tube