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・ Valvata pulchella
・ Valvata sibirica
・ Valvata sincera
・ Valvata studeri
・ Valvata tricarinata
・ Valvata virens
・ Valvatida
・ Valvatidae
・ Valvatoidea
・ Valve
・ Valve (disambiguation)
・ Valve (mollusc)
・ Valve (music)
・ Valve actuator
・ Valve Amplification Company
Valve amplifier
・ Valve Anti-Cheat
・ Valve audio amplifier
・ Valve audio amplifier technical specification
・ Valve Corporation
・ Valve cover racing
・ Valve exerciser
・ Valve float
・ Valve gear
・ Valve guide
・ Valve hall
・ Valve job
・ Valve leakage
・ Valve microphone
・ Valve No. 10


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Valve amplifier : ウィキペディア英語版
Valve amplifier

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 during the 1960s and 1970s. Valve amplifiers are used for applications such as guitar amplifiers, satellite transponders such as DirecTV and GPS, audiophile stereo amplifiers, military applications (such as radar) and very high power radio and UHF television transmitters.
== History ==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Valve amplifier」の詳細全文を読む



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