[Keri Szafir] is no exception, and she’s produced a stereo tube amp with a few modern features. Electrically it’s a relatively conventional single-ended design using a double triode and a ...

With the wealth of cheap and highly integrated audio amplifier modules on the market ... Especially when those parts include vacuum tubes, and doubly so when you make the vacuum tubes from scratch ...

One big change is the addition of two JAN6418 vacuum tubes, with the M8T featuring both a tube amp and a transistor-based ...

When it comes to listening on the best headphones, many hi-fi fans swear by the power of tubes. Amplifiers that use vacuum tubes instead of – or alongside – solid-state electronics are ...

I’d say 23-22 hours of use isn’t out of the question ... that’s imminent pleasing to listen to. The Vacuum tube is a part of the pre-amp of the headphones, and it warms up the signal ...