RE: How to tell if tube is counterfeit

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Questions about tubes and gear that glows. FAQ

In Reply to: How to tell if tube is counterfeit posted by audiophilewannabe on May 2, 2020 at 03:22:30:

The etch marks (tube type and manufacturer/date) are hard to counterfeit.

They also have holes in the bottom of the guide pin, which is another good sign.

Assuming you get what is pictured, they look authentic.

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Topic - How to tell if tube is counterfeit - audiophilewannabe 03:22:30 05/02/20 (2)

RE: How to tell if tube is counterfeit - spindoctor 18:17:27 05/02/20 (0)

RE: How to tell if tube is counterfeit - baileyler 08:36:00 05/02/20 (0)

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RE: How to tell if tube is counterfeit - baileyler 08:36:00 05/02/20 (0)

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