Siemens 12AT7/ECC81 O-Getter Made in Germany Date code is not visible on this tube. Fully tested by calibrated Hickok 539C tubes tester with no shorts, leakage or gas. Measurement: 3150/3400 where minimum good value is 2500 Tested in my preamplifier to make sure working as intended with no issues at all. |
I will gladly combine shipping upon request. |
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