NOS/NIB New Rare Philips/Amperex GZ34/5AR4 Double D-Getter Rectifier Tube from 1959. Labeled as Valvo. Rare DD (Double D) Getter version. Very Early 1959 Production. Date Code: f31 X9D Made in April 1959 in Sittard Holland. Fully tested by calibrated Hickok 539C tube tester with no shorts, leakage or gas. Measurement: 163/164 where minimum good value is 54 Very strong NOS new tube! Tightly balanced sections! I will gladly combine shipping upon request. |
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