Vintage RCA Vacuum Electron Tube 6AU6 Untested

Vintage General Electric 6AU6 Vacuum Tube, FC1 Tested, Good

Vintage GE 6AU6 Television/ Radio/ Electronics Vacuum Tube

Vintage General Electric 6AU6 Vacuum Tube, FC1 Tested, Strong

Vintage Sylvania 6AU6 Electron Tube Untested In RCA Box

Vintage Vacuum Tube Lot – RCA, GE, Sylvania – Hundreds NOS/Untested Estate Find