CBS Vacuum Tube 3AV6 TESTED NOS

(1) Tested GE 3AV6 Tube with Box Date Code 61-17 Twin Diode High Mu Triode

6SQ7 CBS Duplex-Diode High-Mu Triode Vacuum Tube - TESTED

6AN4 Sylvania Triode Vacuum Tube - NOS - TESTED

(1) Tested Tung Sol 6T8A Tube with Box Code NK3 Triple Diode High Mu Triode Tube

Vacuum Tube type 3AV6 High Mu Triode/Dual Diode NOS/NIB (#13240)

12AU7 - 100% TESTED GOOD VACUUM TUBE- TESTS STRONG

6BH8 CBS Triode-Pentode Audio Video Vacuum Tube NOS - TESTED