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Condition: NewFor 7pins tube: B7G 6AU6 EF95 6C4 6X4 EAA9 EC92 6Z4...Working Voltage: 1500VContact Resistance >0.01ΩInsulation Resistance <10000MΩUseful Life: 200 times
Condition: NewFor 4pins tube: 805 845...Working Voltage: 1500VContact Resistance >0.01ΩInsulation Resistance <10000MΩUseful Life: 200 times