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What is the name of the tube used in class A amplifier with the function of dual triode developed in USA and published in September 15 1947?
Wiki User
∙ 10y ago
There are two names for the tube used in Class A amplifiers developed in the USA. This valve in the US is called vacuum tube audio amplifier. In the UK they are known as valve audio amplifiers.
Wiki User
∙ 10y ago
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