Usage of commonly used electronic instruments 

Single magnifying circuit of the transistor 

Test of two -level feedback amplifier circuit Integrated door circuit Electrical feature test

DC Different Drives Large M88 games apkCircuit Combination Logic Circuit Component Experiment

M88 games apkIntegrated operation amplifier circuit design circuit design

Sinlestest wave oscillator 

Crystal tube regulatory voltage circuit

DC stabilization circuit A/D converter and memory test