Sylvania 12AX7 Gray Plate Well Matched (8.3%) Pair NOS ECC83 12AX7 12AX7A
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This is a well matched pair of Sylvania 12AX7 tubes. They were manufactured in the USA by Sylvania. One of the tubes is perfectly balanced. These tubes were manufactured to rigorous military specifications for reduced noise and microphonics. These tubes have long gray plates, green lettering, and a halo getter. These are highly sought after Sylvania 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:
2,850/3,000
2,800/2,775
| Listed | 3 months ago |
|---|---|
| Condition | Excellent (Used) Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more |
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