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Class A - how to tell?

Class A definition is simple: conducts full cycle. However in real life, when an amplifier manufacturer claims his product is Class A, how do we know it is true or false. In particular, I am thinking of an ultralinear, push-pull, KT88/6550/EL34 tube amp.

Some people will go by static plate dissipation alone, but I am not sure if that is right or not.


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Topic - Class A - how to tell? - ianm0 17:35:35 09/08/14 (11)

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