This is a well matched pair of Sylvania 12AX7 tubes. They were made in the USA by Sylvania for Baldwin Organs. These tubes are well matched and balanced, and they have matching date codes. These tubes were manufactured to rigorous specifications for reduced noise and microphonics. These tubes have long gray plates, green lettering, and halo getters. 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:
2,300/2,100
2,325/2,125
| Listed | 3 months ago |
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| Condition | Mint (Used) Mint items are in essentially new original condition but have been opened or played.Learn more |
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