RCA 12AU7A Clear Top Perfectly Balanced Single NOS 12AU7 Cleartop

This is a perfectly balanced single RCA 12AU7A cleartop tube that weas made in the USA. This tube was manufactured to rigorous specifications and you can expect low noise and great performance. This tube has plates that test identical to each other. This tube has long gray plates, red lettering, and a side getter. These are highly sought after RCA 12AU7A cleartop 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 these tubes on my recently calibrated Hickok 600a and TV7D/U tube testers. The test results are as follows:

2,850/2,850