Mullard CV1377 (=GZ34/5AR4) O-Getter Rectifier Vacuum Tube Made in England 7 Notch Version Date Code: f32 B4F1 Made in Blackburn England. Fully tested by calibrated Hickok 539C tube tester with no shorts, leakage or gas. Measurement: 176/175 where minimum good value is 54 Measures strong and tightly balanced! Possibly unused! I will gladly combine shipping upon request. |
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