(!!!!) (Pair) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (1.0/1.3ma and 43ma/44ma)

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

1 tube) 1.0ma Gm=1500 Triode and 44ma Gm=10.700 Pentode  

1 tube) 1.3ma Gm=1700 Triode and 43ma Gm=10,800 Pentode  

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- Sennheiser Orpheus headphone amp
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- GRUNDIG SO 190 Ua1 CONSOLE 1962