NOS/NIB Matched Pair Western Electric Mil-Spec JW 396A/2C51/5670 Vacuum Tube Black Plate Square Getter Made in USA. Desirable JW mil-spec square getter version. Early production: made in 1958. Comes in original military boxes. New never used pair. Same Date code: 852 Both tubes are made in the 4th quarter 1958 in USA. Fully tested by calibrated Hickok 539C tube tester with no shorts, leakage or gas. Measurement: 5300/5900 5300/6400 where minimum good value is 3150 |
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