rca 12au7 tube tested 10393

rca 12au7 tube tested 10393

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Vintage RCA 12AU7A GOLD GRADE Clear Top D Getter Preamp Tube = 5814, 6189, ECC82

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1 x NOS 5963 12AU7 RCA Black Plate Foil Getter Twin Triode - TV-7 Tested - 1954

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4 x NOS NIB RCA 12AU7 ECC-82 Black Plate Tubes - TV-7 Tested - Mid-1950s

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Quad RCA 5963 Tubes 12AU7 ECC82, Black Plates, Balanced, Matched, Gm Tested

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RCA CLEAR TOP 12AU7A Side Getter 1960's Tubes *Platinum Matched on AT1000*

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NOS RCA 12AU7A/ECC82 VACUUM TUBE

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ECC82/12AU7 NOS RCA CLEAR TOP VACUUM TUBES MATCHING QUAD USA

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