Sylvania 7025 Gray Plate Well Matched Pair NOS ECC83 12AX7

This is a pair of Sylvania 7025 / 12AX7 tubes. The 7025 is interchangeable with the 12AX7 but it has a slightly lower amplification factor. These tubes are well matched and balanced.  These tubes have long gray plates, yellow lettering, and halo getters. These tubes were manufactured to rigorous specifications for reduced noise and microphonics. These are highly sought after Sylvania 7025 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:

2,375/2,600

2,750/2,475