- Tested Very Strong - Type 24a Sylvania ST Shape Vacuum Tube

Vintage U.S.A. RCA 6L6 GC Black Plate Vacuum Tube Test Very Strong

RCA Cunningham-Type 24A Vacuum Tube. Engraved Base. Tests Very Strong.

RCA VICTOR 12AU6 VACUUM TUBE NOS NIB ORIGINAL BOX GREY PLATE SINGLE OLD SCHOOL

RCA 6AL5 Vacuum Tube Dual Diode Tested Strong 100/100 Vintage Audio Radio

RCA 6146W Vacuum Tube Tested Very Strong. In Original Box Date Code 70-22

RCA VICTOR Type 53 Black Plate ST Bottle Vacuum TUBE TV7 TESTED NOS 🅾️

RCA VICTOR, Emerson 1S5 Vacuum Tube Tested Good Used (Brands vary)