(1) Tested RCA 6AX4GTB Tube Date Code DV Coin Base RCA 6AX4 GTB Rectifier Tube

(1) Tested RCA 6AX4GTB Tube with Box Code DW Coin Base RCA 6AX4 GTB Rectifier

RCA 6AU4 GTA Vacuum Tube Coin Base Tested Good

VINTAGE NOS RCA 6AX4GTB VACUUM TUBE TUBES USA TESTED TUB23045

VINTAGE NOS RCA 6AX4GTB VACUUM TUBE TUBES USA TESTED TUB13099

Vacuum Tube GROOVE TUBES 6AX4GTB Coin Base Hickok Tested 100%+ NOS

VINTAGE RCA ELECTRON RADIO VACUUM TUBE 6de4 Tested Good

4-Vintage Tested Good RCA 6AX4GTB Power Damper Grey Plate Vacuum Tubes Radio TV