(!!!!) (Best Value) 12AX7=ECC83=7025 IEC Mullard ribbed plates used/good 1965 (0.9/1.2ma and Gm=1500/1800)
(!!!!) (Good Value Pair) 7025 RCA gray used/good 1960's (Gm=1500/1500 x 2 tubes) 1% matched
