Matched Pair Amperex/Philips EL84/6BQ5 with O-Getter Made in Heerlen Holland. Label is mostly erased. Same Date Code: rX4 Delta 2G5 Both tubes are made in July 1962 in Heerlen Holland. Fully tested by calibrated Hickok 539C tube tester with no shorts, leakage or gas. Measurement: 10700 10800 where minimum good value is 5650 Tightly matched strong pair. |
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