(!!!!) (Best Pair) ECL86=6GW8 Siemens Germany NOS 1968-1969 (1.1/1.2ma and 41/46ma)

1 pair) ECL86=6GW8 Siemens Halske Germany NOS 1968-1969

1 tube) 1.1ma Gm=1500 Triode  41ma Gm=10,500 Pentode  

1 tube) 1.2ma Gm=1600 Triode  46ma Gm=11,000 Pentode  

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