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5U4GB Hitachi Japan NOS branded Marconi 1960's a few very small vertical scratches on base (57/40 and 58/40)

By Tube World

$ 22.99

5U4GB Hitachi Japan NOS branded Marconi early 1960's a few very small vertical scratches on base, double "O" getter halos

57/40

58/40

See more: vacuum tube
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