8 Assorted RAYTHEON 12AU7/A Tubes - All tested STRONG

RAYTHEON - 12BE3 Electronic Tube - Tested STRONG

RAYTHEON - 12AX4GTB Electronic Tube - Tested STRONG

RAYTHEON - NOS 19AU4GTA Electronic Tube - Tested STRONG

RAYTHEON - NOS 16AQ3 Electronic Tube - Tested STRONG

(1) Tested Strong Sylvania 6DW4 Tube Date Code gk ALA Sylvania Rectifier (a)

Tested Strong Raytheon 12AT7 ECC 81 Electronic Vacuum Tube

(1) Tested Strong Raytheon 6DA4A Tube Date Code M14 6DA4 A Rectifier Vacuum Tube