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D What is Class A, B, AB, ultralinear, etc? 1 Class A means that the power tube conducts the same amount of current all the time, whether idling or producing full power. Class A is very inefficient with electricity but usually gives very low distortion. There are two kinds of class-A operation, which can apply to single-ended or push-pull. Class A2 also requires a special driver circuit, that can supply power to the grid. E Why are different kinds of power supplies used in various tube amplifiers? G Ther.

20 W Stereo Integrated Amp. 60 W Stereo Power Amplifier. Understanding and Building Tube Amps. Please also see the McGraw-Hill. Web site for more information on this title. Incorporate the tube sound into your home audio system.

Vacuum Tube - Brasil by Hilton Furlan.