(!) 417A/5842 LM Ericsson Sweden used/good "O" getter halo 1960's (19ma and Gm=23,900)
407A LM Ericsson Sweden like new 1960's (41/26 and 42/26)
407A LM Ericsson Sweden used/good 1960's
6X4 Arcturus by GE NOS "D" getter 1960 (54/40 and 54/40)
6X4 GE branded AMC gray plates "O" getter NOS 1970's (54/40 and 57/40)
6X4 National Union "D" getter halo tests like new 1955 (56/40 and 58/40)
6X4 RCA "O" getter low hours/like new 1960's (49/40 and 52/40)
6X4WA GE black plates rebranded National NOS (55/40 and 56/40)
