How can a transistor be made into a composite tube?
For example, the characteristic frequency needs to be consistent, otherwise the compound can only work according to the pipe with low characteristic frequency. For example, pressure levels need to be consistent, or only in accordance with the low voltage pipe work. There are other features that need to be the same, or at least close to compound, will produce good results. In addition, the NPN polarity can be changed to PNP polarity by meeting the effect of changing the polarity of the material.
It is desirable to combine the two transistors into a larger transistor, requiring some conditions.
Transistors still have many technical points to be used, and it is better to refer to them for reference.
