(!!!!) (Best Pair) ECL86=6GW8 Philips Holland NOS dimpled disc getter halos 1968 (1.6/1.7ma and 36/41ma)

1 pair) ECL86 Philips Holland NOS dimpled disc getter halos 1968  1 tube) 1.6ma/Gm=2000 and 36ma/Gm=10,100 1 tube) 1.7ma/Gm=2000 and 41ma/Gm=10,900   Good mA=1.0-1.2mA+and Gm=1500+ (triode) Good mA=30-35mA+ and Gm=9000+ (pentode)   Matched on Amplitrex recommended for: - Shindo Aurieges L linestage - Headamp Aristaeus 2007- Sennheiser Orpheus headphone amp- TELEFUNKEN HYMNUS CONSOLE 1962- Revox Model 40 Stereo amp made in Switzerland (by Willi Studer)- Hammond M-100- GRUNDIG SO 190 Ua1 CONSOLE 1962