(!!!) (Recommended Pair) 407A Western Electric NOS “”D”” getter 1962-1970 (36-39/26 and 34-38/26)

1 pair) 407A Western Electric NOS “”D”” getter original boxes

1 tube) 36/26 and 39/26 (1962)

1 tube) 34/26 and 38/38 (1970)

Tested on TV-7D/U

407A=396A with a 20V filament