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(!!!!!) (Best Value Single) EZ81 Philips Miniwatt by Mullard Blackburn UK "D" getter low hours/tests like new 1962 (56/40 and 56/40) 1% section balance
(!!!!!) (Best Value) EZ81 Philips Miniwatt by Mullard Blackburn UK "O" getter used/tests like new 1965 (58/40 and 58/40) 1% section balance
(!!!!) (Best Single) EZ81 Mullard Blackburn UK "D" getter halo NOS 1959 (57/40 and 58/40)
(!!!!) (Best Value Pair) EZ81 Mullard Blackburn UK branded PHILIPS MINIWATT "U" getter halo used/test like new 1963 (57-60/40 and 59-58/40)
(!!!!) (Best Value Single) EZ81 Mullard Blackburn UK branded Philips Miniwatt Holland "D" getter used/strong 1958 (55/40 and 56/40)
(!!!!) (Single) 12AT7=ECC81 Mullard UK used/tests like new 1968 (10.2/12.2ma)
(!!!) (Best Value Single) ECC85=6AQ8 Philips Holland NOS 1975 (10/17ma)
(!!) (Best Pair #2) ECC81=12AT7 Philips by Mullard and Mullard UK NOS 1965-1970 (10.5/12ma and 11.2/10.6ma) (sweet sound)
