(!!) (Best 3B28) 3B28 Chatham USA NOS 1952 in white boxes (1 in stock)
(!) 3B28 RCA tests like new some scratches on base 1955 (1 in stock)
3B28 Continental Electronics used/test like new 1940's (2 in stock)
4 Pin EF Johnson (123-210-200) NOS for 811A / 572B / 866A / 8020W
