This is a well matched pair of Sylvania JAN 12AU7 tubes. These tubes were manufactured in the USA by Sylvania. Both of these tubes are visually very similar to each other. They test very close to each other, and stronger than NOS. These tubes have been manufactured to meet the highest military standards, so you can expect low noise and microphonics. Both of these tubes have long gray plates, green lettering, and halo getters. These are excellent Sylvania JAN 12AU7 tubes that are highly sought after, 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 these tubes on my recently calibrated Hickok 600a and my TV7D/U tube testers and the results are as follows:

2,675/2,775
2,550/2,750

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Listeda year ago
ConditionExcellent (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
Brand
Model
  • 12AU7
Categories
Year
  • 1962, 1964
Made In
  • United States

Product safety information may be available here.

TX Audio Tubes

HOUSTON, TX, United States
Joined Reverb:2021

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