RCA 5U4G Smooth Black Plate Bottom Square Getter Hanging Filament Rectifier Vacuum Tube Made in USA. Tube base has some glue residue. Guide pin is broken off. Broken guide pin repair piece is included (see the last photo). Desirable Smooth Plate Hanging Filament version. Fully tested by calibrated Hickok 539C tube tester with no shorts, leakage or gas. Measurement: 104/110 where minimum good value is 54 Measures Strong! I will gladly combine shipping upon request. |
|