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