Telefunken 12au7 Smooth Plates

1 Star2 Stars3 Stars4 Stars5 Stars (8 votes, average: 3.63 out of 5)
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“Changed my stock tubes with Telefunken 12AU7. WOW… it smooths up upper freq. and vocal.” Read

“… generally speaking all the Telefunken 12A family tubes I’ve heard (‘X7s, ‘T7s, ‘U7s) are a bit bright, thin and airy sounding. ” Read

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