NOS/NIB Matched Pair RCA 12AU7A/ECC82 Clear Top Side Square Getter Made in USA Same Date Code: 66-26 Both tubes are made 1966 Fully tested by calibrated Hickok 539C tubes tester with no shorts, leakage or gas. Measurement: 2820/2980 2990/2830 where minimum good value is 1950 Tested in my preamplifier to make sure working as intended with no issues at all.
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