(!!) (#1 EC86) EC86 Telefunken gold pins NOS 1964 (13ma) tested on Amplitrex
(!!) (#1 EC86) EC86 Telefunken Kuhl-Tube cryo-treated gold pins NOS 1960's (18.2ma) tested on Amplitrex (high Ma and Gm)
(!!) (~ Best Overall pair ~) EC806S=E86C Telefunken Gold Pins Kuhl-Tube cryo NOS 1960's (13.0ma and 13.6ma)
(!!) (~ Recommended Pair ~) EC86 Telefunken Kuhl-Tube cryo-treated gold pins NOS (14.4ma and 15ma)
EC806S=E86C Telefunken Gold Pins Kuhl-Tube cryo NOS early 1960's (12.5ma)
