(1) Tested GE 22BW3 Tube with Box Date Code JN General Electric Rectifier Tube

(1) Tested Sylvania 6AY3 Tube with Box Date Code mk RAF Half Wave Rectifier

(1) Tested Sylvania 6CL3 Tube with Box Date Code NR Half Wave Rectifier Tube

(1) Tested Sylvania 6X4 Tube with Box Date Code aj JAR Full Wave Rectifier Tube

(1) Tested Westinghouse 6CJ3 Tube with Box Date Code 84-03 Rectifier Tube

(1) Tested Zenith 11CY7 Tube with Box Date Code 58-22 Double Triode Tube

(1) Tested GE 17D4 Tube with Box Date Code CV General Electric Rectifier Tube

(1) Tested Very Strong RCA 6AF3 Tube with Box Date Code ND Half Wave Rectifier