They have never been used.
Item Tag: 845
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2Pcs 845 HIFI Vacuum Valve Tube ShuGuang 845B Amplifier Matched Pair New Version
2pcs ShuGuang 845 HIFI Vacuum Valve Tube 845B Amplifier Matched Pair New Version. Two 845 ( Matched Pair ). Type : 845. Quantity : Two Tubes( Matched Pair ). Original Box.