Check the listing for details. 35C5- 100% REFURBISHED VACUUM TUBE- TESTS STRONG. Condition: Used. Listed at 14.42 USD. QUALITY REFURBISHED TESTED GOOD ELECTRON VACUUM TUBES: This Vacuum Tube(s) "PASSED" QC test(s) per specification on the KNIGHT 600A’s test meter scale. Tubes are ergonomically packaged to protect them for mailing to your location using the USPO. *ZElectronTube Suppliers include: Magnavox, GE, CBS, Raytheon, Sylvania, Kenrad, Silvertone, Admiral, Hytron, others as inventory dictates. Note: *ZElectronTube has thousands of tubes in stock, so please e mail your requirements to me for a quick quote on tested/certified NOTE: THE PIC IS MY BUSINESS LOGO. I AM NOT SELLING A TUBE TESTER - I SELL TESTED AND BULK ELECTRON Vacuum Tube(s)S AS DESCRIBED IN MY ADS. NOTE: THE PIC IS MY BUSINESS LOGO. I AM NOT SELLING A TUBE TESTER - I SELL TESTED INDIVIDUAL AND UNTESTED BULK ELECTRON Vacuum Tube(s)S AS DESCRIBED IN MY ADS.