The so-called boost chip refers to the integrated circuit used for direct current boost, which contains a complete set of circuits such as vibration, sampling, and energy storage. It's not the same as a triode! One or two triodes can make a simple booster circuit, but the efficiency is far less than that of a dedicated chip.
Crystal triode (hereinafter referred to as triode) is divided into two kinds according to the material: germanium tube and silicon tube. And each has two structural forms of NPN and PNP, but the use of silicon NPN and germanium PNP two kinds of audion, (where N means the addition of phosphorus in high-purity silicon, which refers to the replacement of some silicon atoms under voltage stimulation to produce free electron conduction, and p is the addition of boron to replace silicon, producing a large number of holes conducive to conduction). Both work in the same way except for the polarity of the power supply.