1 Zenith 6JB6 6JB6A Vacuum Tube Tested NOS On TV -7

6467 DuMont Electron Tube Vacuum Tube Made In USA Vintage Audio Electronics

7C6 - 100% TESTED GOOD VACUUM TUBE- TESTS STRONG

(1) Tested Strong Unbranded 6JB6 Tube 9 Pin Beam Power Tube

NOS NIB DUMONT (Sylvania Made) 6JB6 Ham Radio Sweeps VACUUM TUBE Tested 12.8748

DUMONT 6AV6 VACUUM TUBE

6AL7GT DuMont Magic Eye indicator Vacuum Tube, TV-7D Tested - will combine ship

12GC6 Power Vacuum Tube - Motorola Black Plate Side Getters - Tests High