GE 12AX7 One Made For Zenith Gray Plate Very Well Matched (4.1%) Pair NOS ECC83 12AX7A

This is a well matched pair of GE 12AX7 tubes. They were manufactured in the USA by GE, and one is branded Zenith. These tubes are well matched and balanced, and test stronger than NOS. These tubes were manufactured to rigorous specifications for reduced noise and microphonics. These tubes have long gray plates, white or yellow lettering, and top halo getters. These are highly sought after GE 12AX7 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:

1,825/1,750

1,825/1,800