Vtg Raytheon 12AX4GTB Electron Vacuum Tube Tested Good W/Box

GE Electronic Tube 12AX4GTB NOS In Original Box ~ Tested

RAYTHEON 6AX4-GTB New in Box Rectifier tube Tested Excellent

VINTAGE NOS RAYTHEON 6AX4GTB VACUUM TUBE TUBES USA TESTED TUB13105

Tested Strong Raytheon 12AT7 ECC 81 Electronic Vacuum Tube

RAYTHEON - 12BE3 Electronic Tube - Tested STRONG

Vintage Raytheon Vacuum Tube 12AX4 GTA USA Tested

Raytheon 12AX7 grey Plate O getter Tube Tested