Matched Pair Mullard GZ34/5AR4 O-Getter Rectifier Vacuum Tube Made in Blackburn England. Labeled as Sylvania. 7 Notch Version. Etched Date Code on Glass: f32 B9A3 & f32 B9A2 Both tubes are made in January 1969 in Blackburn England. Fully tested by calibrated Hickok 539C tube tester with no shorts, leakage or gas. Measurement: 166/168 166/169 where minimum good value is 54 Tightly matched strong pair! I will gladly combine shipping upon request. |
|