Anyone looking to upgrade their headphones might be interested in the new écoute vacuum tube headphones specifically created to compensate for the deficiencies of digital listening. Launched via ...

When it comes to listening on the best headphones, many hi-fi fans swear by the power of tubes. Amplifiers that use vacuum ...

Whilst not inexpensive, the Apos Ray 12AU7 Vacuum Tubes offer excellent sound quality, superior packaging and matching, and a 90-day warranty. Whilst it may seem like a strange time to be jumping into ...

Prior to Bell Labs’ first working transistor in 1947, which ushered in the advent of semiconductor technology and the computer age, every long-distance telephone call, radio and television broadcast, ...

Linear, small-signal AC models can be useful in the analysis and design of vacuum-tube-based circuits. Under large-signal conditions, nonlinear models are typically required. Almost 120 years ago, ...