GE / Ken-Rad 12AU7 Long Gray Plates Well Matched (2.6%) Pair NOS ECC82 12AU7A

This is a well matched pair of GE / Ken-Rad 12AU7 tubes. These tubes were manufactured in the USA by GE in the legendary factory that GE bought from Ken-Rad in the late 40s. These tubes were manufactured to rigorous specifications for reduced noise and microphonics. These tubes have long gray plates, white lettering, and dimple-D or horseshoe getters. These are highly sought after 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 tested this tube on my recently calibrated Hickok 600a and TV7D/U tube testers.

The results are as follows:

2,875/2,850
2,850/2,800