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(!) (SINGLE) 6BQ5=EL84 Heath Mullard Great Britain used/good 1959 (40ma)
(!) (SINGLE) 6DQ5 Sylvania NOS 1970's (106ma)
(!) (SINGLE) 6JS6C GE NOS 1976 (70ma)
(!) (SINGLE) 6L6GB RCA Baldwin gray plate used/good 1959 (65ma)
(!) (Single) 6L6WGB=5881 Sylvania black base NOS 1975 (78.5ma)
(!) (SINGLE) 7027A RCA NOS 1968 (64ma)
(!) (SINGLE) 7027A RCA NOS 1968 (85ma)
(!) (Single) 7189 Mullard UK used/strong 1962 (43.8ma)
(!) (Single) 7591 EICO Westinghouse used/70% 1961 top edge of base is chipped (42ma and Gm=7350)
(!) (SINGLE) 841=VT-51 Hytron NOS 1940's (5.2ma Gm=1200)
(!) (Single) EL34 Mullard XF2 double halo "O-O" used/70% 1962 (62.5ma)
(!) (sold out) F2a Siemens NOS 1960's (112ma) Tested on Amplitrex (sold out)
(!) 17BF11 GE Admiral NOS 1960's (80-82/60) (CAYIN)
(!) 17BF11 Westinghouse Japan 1970's (80-82/60) (CAYIN)
(!) 203A Sylvania brass base tests like new 1930's
(!) 247=47 RCA Balloon used/60-65% 1930's (20ma)
(!) 247=47 Tungsol Balloon used/good 1930's (23.2ma)
(!) 31 Ken Rad NOS engraved base 1940 era (11ma)
(!) 31 Tungsol NOS 1940's (11.8ma)
(!) 47 GE NOS 1948 (41ma and Gm=3100) (Highest mA and Gm)
