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

(1) Tested Sylvania 36AM3B Tube with Box Date Code BCY 36AM3 B Rectifier Tube

(1) Tested Zenith 6AY3 Tube with Box Date Code 6243 Half Wave Rectifier

(1) Tested GE 6AX3 Compactron Tube with Box Date Code JF Half Wave Rectifier

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

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