(!!!) (Best Pair) 407A Western Electric NOS "O" getter 1979-1983 (46-42/26 and 46-42/26)

1 pair) 407A Western Electric NOS "O" getter original boxes  

1 tube) 46/26 and 42/26 (1983) in 1980 box

1 tube) 46/26 and 42/38 (1979)

Tested on TV-7D/U

407A=396A with a 20V filament