(7 votes, average: 4.00 out of 5)
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Tube Maze
Guides and reviews of vacuum tubes and tube equipment
Another day another 6F8G tube, This time it’s National Union tube – very rare version of 6F8G. National Union, due to its rarety, is not as well known as RCA and Sylvania, but is as capable although quite different in its sound. Very transparent tube, somewhat similar to Ken-Rad 6F8G, but it lacks a bit of the air of the Ken-Rad. Very natural sounding tube without much coloration, great Jazz tube.