nos matched pair rca 6sn7gtb vacuum tubes tested vintage coin base b10172c

nos matched pair rca 6sn7gtb vacuum tubes tested vintage coin base b10172c

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Pair of Siemens E83CC 6057 NOS NIB Triple Mica Vacuum Tubes - 6% matched

Pair of Siemens E83CC 6057 NOS NIB Triple Mica Vacuum Tubes - 6% matched

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NOS SVETLANA EL34 Matched Pair *Amplitrex Tested*

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2 NOS Matched Tung-Sol 5881 JAN CTL 6L6WGB Tubes USA 1953 (TESTED W/ TV-7D/U)

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Westinghouse 5670 2C51 396A 6N3P Tubes - Matched Pair, Tested NOS/NIB

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NOS MATCHED PAIR - RCA 6AV5GA VINTAGE TUBES - NEW OLD STOCK IN BOX 6AV5

NOS MATCHED PAIR - RCA 6AV5GA VINTAGE TUBES - NEW OLD STOCK IN BOX 6AV5

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NOS Matched Pair Original Tesla ECC88 6DJ8 YELLOW LETTERS Tested & VERY CLEAN

NOS Matched Pair Original Tesla ECC88 6DJ8 YELLOW LETTERS Tested & VERY CLEAN

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NOS Matched Pair Sylvania 5692 Black Plate Double Round Getters Triple Mica USA

NOS Matched Pair Sylvania 5692 Black Plate Double Round Getters Triple Mica USA

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Matched Pair (2) NOS/NIB Mullard 5654/6AK5/EF95/M8100 BLACK HOLE plate tubes

Matched Pair (2) NOS/NIB Mullard 5654/6AK5/EF95/M8100 BLACK HOLE plate tubes

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FOUR QUAD 6N1P-VI 6DJ8 ECC88 6922 RUSSIAN NOS Vacuum Tube Matched Balanced

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2 NOS Matched RCA 6V6GT Tubes USA 1957

2 NOS Matched RCA 6V6GT Tubes USA 1957

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