(1) Tested RCA 7K7 Tube Date Code 322 Diode Triode Loktal Tube

(1) Tested RCA 12BR7 Tube with Box Date Code AV Twin Diode Triode Tube

(1) Tested RCA 6BR8A Tube with Box Date Code CB RCA Triode Pentode Tube

(1) Tested RCA 8CM7 Tube with Box Date Code NI RCA Double Triode Tube

(1) Tested Philco 7C5 Tube Date Code P8 Loktal Tube Beam Power Loctal Tube

(1) Tested Philco 6L7 Tube Date Code P8 Philco Pentagrid Mixer Tube

(1) Tested Sylvania 3AV6 Tube with Box Date Code ACG Twin Diode High Mu Triode

(1) Tested Philco 6AM4 Tube with Box Date Code 1063 Triode Tube