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 | 1x 6K7G Vacuum Tube Valve SYLVANIA NOS tested 100% digitsdt EUR 18.8 Category : Tubes, lampes Seller : kvalves(722, 100.0%) |  | 1x  6K7G Vacuum Tube Valve MARCONI RADIOTRON NOS NIB tested 100% digitsdt EUR 12.8 Category : Tubes, lampes Seller : kvalves(719, 100.0%) |