Strong Matched pair RCA 12AU7A Clear Top. 1962 Test as NOS 12AU7 ECC82 The Best!

Strong Matched pair RCA 12AU7A Clear Top. 1962 Test as NOS 12AU7 ECC82 The Best! (image 1/[null, null, null, null])
Strong Matched pair RCA 12AU7A Clear Top. 1962 Test as NOS 12AU7 ECC82 The Best! (image 2/[null, null, null, null])
Strong Matched pair RCA 12AU7A Clear Top. 1962 Test as NOS 12AU7 ECC82 The Best! (image 3/[null, null, null, null])
Strong Matched pair RCA 12AU7A Clear Top. 1962 Test as NOS 12AU7 ECC82 The Best! (image 4/[null, null, null, null])
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Last Pair! The other 10 pairs sold quickly at this price! Up for sale is a nice matched pair of RCA 12AU7A Clear Top Side Getter Pre-amp dual triode tubes. I tested these on my calibrated hickok 752A and they all test at NOS level with very balanced triodes. These tubes sat in an unused vintage electronic piece which kept the pins ultra clean, although they were dusty. I wiped them clean and tried to retain the date codes, which are all 62-52 and 62-48 which is the 48th and 52nd week of 1962. Vintage RCA tubes always retain the acid etched tube type (12AU7A USA) but the rest of the lettering is fragile. These must have been hand selected because they all exhibit nearly perfect triode balance. All test right around 2500/2500 where 1350 is passing on my hickok. 1350 represents 65% of New Old Stock level. Each item is for one matched pair . (2 matched tubes). You can buy more than one. I have 10 pairs available and each pair is matched. All of the tubes vary by less than 10% between any two of them. Amazing! And better yet, when these tubes typically go for between $40 and $60 for nice audiophile quality matched pairs, you can purchase these for $27.50 per pair. Each pair will have individual test results as you see in the pictures. I am an amp builder and collector and I don't sell any crap "tests good" tubes here on ebay. Only read more
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