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(!!!!) (Best Single 1966) 12AX7 Philips Holland NOS 1966 (Gm=1700/2100 and 1.2/1.7ma)
(!!!!) (Best Value 1960) 12AX7 Philips Miniwatt Holland low hours/tests like new 1960 (Gm=1600/1600 and 1.0/1.3ma)
(!!!!) (Best Value Single) GZ34 Mullard NOS rebranded Tungsram NOS 1972 (54/40 and 60/40)
(!!) (Best Value Holland 1959) 12AX7 ADZAM Holland NOS 1959 large "O" getter halo (.8/1.1ma and Gm=1400/1600)
(!) (READ REVIEW) CV1377=GZ34 Mullard Blackburn UK NOS 1976
UM4 Adzam NOS tuning eye 1950's (5 in stock)