5 Stars4 Stars3 Stars2 Stars1 Star (14 votes, average: 4.07 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (23 votes, average: 4.00 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (32 votes, average: 3.97 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (7 votes, average: 4.29 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (8 votes, average: 4.25 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (9 votes, average: 4.11 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (15 votes, average: 4.20 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (28 votes, average: 4.00 out of 5)

5 Stars4 Stars3 Stars2 Stars1 Star (17 votes, average: 4.06 out of 5)

“Valvo 6201 falls somewhere in the middle between the fast and zippy Siemens and the suave crooning Sylvania” Read

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Since I have recently bought some very nice EL34/6CA7 integrated amplifier (serbian manufacturer P&K Audio, model Duet 34, triode mode connection only), I started playing with its one and only input pre-amplifier tube that is of ECC81 type. Other two phase inverter/driver tubes are the reference Tungsols 5687 which I luckily did not have to play with 🙂