NOS Sylvania 12CL3 Vacuum Tube - White Box - Tested

4BQ7A Sylvania NOS Vacuum Tube. Gm Tested. With Box

12V6 sylvania NOS Vacuum Tube. Gm Tested. With Box

Sylvania 17AY3 VACUUM TUBE - NOS with Original Box ~ Tested

12Z3 Vacuum Tube NOS/NIB TV-7D Tested Radio TV Phono HAM Amp SYLVANIA Guaranteed

Sylvania Electronic Vacuum Tube 6GF7 - NOS with original Box ~ Tested

11BM8 Sylvania NOS Vacuum Tube. Gm Tested. With Box

6AU4 Sylvania NOS Vacuum Tube. Gm Tested. With Box