RCA 12BY7A Test NOS 9000gm schwarze Platten Kupfergitter Fett ""D"" Serious Tubes S336
9,89 €
Mutual Conductance: 9000gm where 5700gm is minimum and 8770gm NOS. Type: 12BY7A. Plate(s): Black w/Copper Grid. Manufacturer: RCA. Getter: Top Fat "D". The tubes need to get to you in one piece. But this the way of the world now.
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