NOS Western Electric 5687 Electron Tube – Sealed Box

NOS Western Electric 5687 Electron Tube – Sealed Box

New old stock Western Electric 5687 electron tube in original sealed paper-wrapped box. Marked “E-Electron Tube Type 5687 Western Electric.” This is a desirable vintage tube type used in communications, audio, test equipment, and military/industrial electronics. Box appears unopened/sealed, which helps value. Sold as untested NOS due to age.