ESOTERIC, a division of TEAC America, Inc., manufacturer of high end consumer electronics, is now shipping a 3 stage tube amplifier that doubles as a line level amplifier. The amplifier was first ...

What is the easiest way to get audio from a WAV file into a line-level format, ready to be plugged into the amplifier of a HiFi audio set (or portable speaker)? As [Konrad Beckmann] demonstrated on ...

The circuit was designed to create a line preamplifier by acquiring the use of double triode tubes. The circuit comprises of three parts, the main preamplifier circuit with tubes, the input selector ...

Danish manufacturer Copland has released a top-of-the-range integrated amplifier in its latest CSA series. The new CSA 150 is a hybrid design, using a double triode gain stage (6922) with MOS-FET ...