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Guitar amplification tubes (32 P) V. Vox (company) (11 P) Pages in category "Guitar amplifier manufacturers" The following 93 pages are in this category, out of 93 total.
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.
Thus Dumble amplifiers are the most expensive boutique amplifiers on the used market [3] and prices have risen rapidly. In 2012, Vintage Guitar magazine said the Dumble Overdrive Special is the most valuable in the product line, with used amplifiers fetching between $70,000 and $150,000. [4] Other models have sold for more. [5]
There is a wide range of sizes and power ratings for guitar amplifiers, from small, lightweight practice amplifiers with a single 6-inch speaker and a 10-watt amp to heavy combo amps with four 10-inch or four 12-inch speakers and a 100-watt amplifier, which are loud enough to use in a nightclub or bar performance.
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.
In electronics, the 300B is a directly-heated power triode vacuum tube with a four-pin base, introduced in 1938 by Western Electric to amplify telephone signals. It measures 6.4 in (16 cm) high and 2.4 in (6.1 cm) wide, and the anode can dissipate 40 watts thermal. In the 1980s it began to be used increasingly by audiophiles in