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2. List of valve amplifier designs - Wikipedia

   en.wikipedia.org/wiki/List_of_valve_amplifier...

   LEAK TL/12 Point One Amplifier. The first commercially produced amplifier with distortion of 0.1% was the LEAK Type 15 "Point One" of 1945, using KT66 vacuum tubes (valves) connected as triodes, with 26 dB feedback over 4 stages including the output transformer. In 1948 LEAK produced the TL/12 which was also rated at 0.1% but featured improved ...

3. Valve amplifier - Wikipedia

   en.wikipedia.org/wiki/Valve_amplifier

   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.

4. Matchless Amplifiers - Wikipedia

   en.wikipedia.org/wiki/Matchless_Amplifiers

   Matchless Amplifiers was founded in 1989 by Mark Sampson and Rick Perotta. The company started in Perotta's home in Hollywood, California. Steve Goodale and Chris Perrotta were also key initial partners. The company saw great success in the early 1990s, meeting the demand for sonically consistent and structurally reliable tube amplifiers.

5. Dynaco - Wikipedia

   en.wikipedia.org/wiki/Dynaco

   More than 350,000 ST-70 amplifiers had been sold when production finally ceased, making the ST 70 the most popular tube power amplifier ever made. [citation needed] A smaller tube amplifier, the 17.5wpc Stereo 35, was introduced in 1963, and was followed the next year by the SCA 35, the company's first integrated (preamp + power amp) tube ...

6. Valve audio amplifier - Wikipedia

   en.wikipedia.org/wiki/Valve_audio_amplifier

   A valve audio amplifier or vacuum tube audio amplifier is a valve amplifier used for sound reinforcement, sound recording and reproduction. Until the invention of solid state devices such as the transistor , all electronic amplification was produced by valve (tube) amplifiers.

7. Ampeg - Wikipedia

   en.wikipedia.org/wiki/Ampeg

   The B-15 was the first in the company's Portaflex series, and after becoming the preferred studio amp of session musicians like James Jamerson and Chuck Rainey. The B-15 and its subsequent variants went on to become the most-recorded bass amplifier in history. [5] [6] By 1963, the Portaflex series business had grown to 44% of Ampeg's amplifier ...