RCA Nuvistor 7586
RCA Nuvistor 7586

RCA Nuvistor 7586

Medium-mu audio triode tube by RCA, NOS/NIB

The first Nuvistor ever released back in 1959 in original box.

These were employed in AKG/Norelco C-12A, C-28 and Neumann U 63 64 series Microphones.


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