Hello FvM, thanks for the reply. But here is still something I don't see clear.
With "uneven" you mean "inconsistent" or a number pertaining to the set: 1, 3, 5, 6,...?
If it is the first case, why would some designs need an inconsistent number of transistors when they have just said that the ouput power of a particular transistor is substantially fixed?
Also, if it was the latter, I don't understand either why an odd number (1, 3, 5,..) would create this inconsistency in production.
Now, thinking of it, do they mean possibly a "variable" or "changing" number of transistors, like a design where you are able to choose the number of transistors working, in order to select the power combined? Pretty confusing to me...