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6N3C power tube. A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal.Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers in the 1960s and 1970s.
The noise properties of tubes at audio frequencies can be modeled well by a perfect noiseless tube having a source of voltage noise in series with the grid. For the EF86 tube, for example, this voltage noise is specified (see e.g., the Valvo, Telefunken or Philips data sheets) as 2 microvolts integrated over a frequency range of approximately ...
The EF86 [1] is a high transconductance sharp cutoff pentode vacuum tube with Noval (B9A) base for audio-frequency applications. It was introduced by the Mullard company in 1953 [2] and was produced by Philips, Mullard, Telefunken, Valvo, and GEC among others. It is very similar electrically to the octal base EF37A and the Rimlock base EF40.
In 1961, the company released the STA range of amplifiers, accompanied by the DSM pre-amplifier. The Series 3 STA25, along with other Amplifiers in the STA range, won critical acclaim. As an expert in transformer design, Arthur Radford was able to reduce distortion by a factor of ten over the best performing amplifier of the day. The MK11 and ...
Musical Fidelity's first product was "The Preamp", which incorporated moving coil and moving magnet pre-amplification and a single line-level ‘Tuner’ input. This was originally designed to overcome his dissatisfaction with the Michaelson & Austin TVP-1 pre- amplifier.
PS Audio is an American company specializing in high-fidelity audio components (also known as high-end audio) equipment for audiophiles and the sound recording industry. It currently produces audio amplifiers, preamplifiers, power related products, digital-to-analog converters, streaming audio, music management software and cables.
AV receiver: Also known as a home theater receiver, connects to a TV and decodes multiple audio channels to power a multi-speaker surround sound system. Preamplifier: It takes the weak audio signal from the source component and sends a stronger signal to the amplifier. Controls and selects audio sources, adjusts volume, and may offer tone ...
12/01/2020 MA352 Integrated Amplifier named "Best Hybrid Amplifier 2020" by Hi-Fi World. [99] 12/10/2020 C53 Stereo Preamplifier named "2020 Best High-End Stereo Preamplier" by Secrets of Home Theater and High Fidelity. [100] 06/08/2021 MA12000 Hybrid Integrated Tube/Solid State Amplifier awarded prestigious "Applause" award by StereoNET UK. [101]
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