RCA 5963 Halo Getter Gray Plate Perfectly Balanced Single NOS 12AU7 12AU7A

This is a perfectly balanced single RCA 5963 tube that was made in the USA by RCA. This tube has plates that test identical to each other. This tube was manufactured to rigorous specifications and you can expect low noise and great performance. This tube has long gray plates, red lettering, and a halo top getter. These are highly sought after RCA 5963 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:

2,750/2,750