1 NOS 6267/EF86 Dumont-Amperex Holland X8? Code
57,66 €
( very hard to read). I tested the tube on my Hickok 600 mutual conductance tube tester and it reads new at (1850) micromhos ,where (1500) micromhos is the average reading of new 6267/EF86 tubes given on the roll chart.
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