(!!!!) (Best Value Pair) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (0.8/0.9ma and 36.5ma/40ma) 1-5% matched

1 pair) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 - faded printing

1 tube) 0.8ma Gm=1500 Triode and 36.5ma Gm=10.300 Pentode  

1 tube) 0.9ma Gm=1500 Triode and 40.0ma Gm=10,400 Pentode  

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