Log in using the new customer accounts page.
(!!!!!) (Recommended Single) 5AR4/GZ34 Mullard fat base tests like new 1961 no printing (57/40 and 57/40)
(!!!!) (Best Pair #1) 5881 Tungsol rebranded Sylvania and GE 1960 era used/test like new (77.3ma and 74.5ma) (close Gm)
(!!!!) (Best Pair #2) 5881 Tungsol branded RCA used/good 1963 (64ma and 65ma)
(!!!) (Best Single #1) 5881 Tungsol NOS 1954 (79.5ma)
(!!!) (Recommended Single) 5881 Tungsol NOS 1954 (77ma)
(!) (SINGLE) 6BQ5=EL84 Heath Mullard Great Britain used/good 1959 (40ma)
