(!!!!!) (Best Pair #1) 12AX7=ECC83 Telefunken Germany <> bottom ribbed plates low hours/test like new 1960-1961 faded printing (1.0/1.2ma and 1.1/1.2ma) 1-2% matched (phono grade)
(!!!!) (Best Value Pair #1) 12AX7=ECC83 Telefunken Germany <> bottom branded GAP/R Computor tube <> bottom smooth plates used/good 1964 era (0.9/0.8ma and 1.0/0.8ma)
(!!!!) (Best Value Pair #2) 12AX7=ECC83 Telefunken Germany <> bottom branded GAP/R Computor tube <> bottom smooth plates used/good 1964 era (0.8/0.8ma and 0.8/0.8ma)
