RCA Made For Conn 12AU7 Long Black Plate Well Matched (9.2%) Pair NOS 12AU7A ECC82

This is a well matched and balanced pair of RCA 12AU7 tubes that were made in the USA for Conn and they have the RCA factory code 274 on both tubes. These tubes were manufactured to rigorous specifications and you can expect low noise and great performance. These tubes have plates that test closely to each other. These tubes have long black plates, red lettering, and an angled square top getter. These are highly sought after RCA 12AU7 tubes, act quickly before they sell out!! More available upon request.

Be careful buying tubes from other sellers who list "matched pairs" but do not provide test results or specify the equipment that they use to test their tubes.

I personally hand tested this tube on my recently calibrated Hickok 600a and TV7D/U tube testers.

The test results are as follows:

2,200/2,425

2,225/2,400