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“sounding more sweet and a bit warm than Sovtek ,but sovtek have better transparency & more dynamic.” Read

5 Stars4 Stars3 Stars2 Stars1 Star (24 votes, average: 4.13 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (19 votes, average: 4.21 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (15 votes, average: 4.67 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (23 votes, average: 3.65 out of 5)


Tube Maze guys sent me a matched quad some time ago. The matching process that he uses produces a very tight set, which is very important if you have a fixed bias amp like I do. Closer the match, the happier the amp – simple as that.

A Historical Departure: The Edison Mazda Light Bulb (c. 1910–1920)

While this featured item deviates from our typical vacuum tube focus, its historical significance to the evolution of electronics makes it a noteworthy discovery. During a recent acquisition of vintage tubes, I uncovered a remarkable artifact: an original Edison Light Bulb dating back to the early 20th century.

5 Stars4 Stars3 Stars2 Stars1 Star (15 votes, average: 4.13 out of 5)