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Since the 1950s the vast majority of high-quality valve amplifiers, and almost all higher-power valve amplifiers have been of the push–pull type. Push–pull output stages can use triodes for lowest Z out and best linearity, but often use tetrodes or pentodes which give greater gain and power. Many output valves such as KT88, EL34, and EL84 ...
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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 Williamson amplifier was published in 1947 as an article in Wireless World, and was a milestone which defined the mainstream topology for the majority of amplifiers thereafter. The design gave particular attention to a very high specification for the output transformer, in addition to being generally a consistently well worked-through design.
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Print/export Download as PDF ... Pages in category "Valve amplifiers" The following 31 pages are in this category, out of 31 total. ... Valve audio amplifier ...
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Print/export Download as PDF ... Pages in category "Audio amplifier specifications" The following 17 pages are in this category, out of 17 total.