This page provides a comprehensive overview of electronic device models, focusing on vacuum tubes and semiconductors. It explores the physical principles, emphasizing time constants, junction capacita...This page provides a comprehensive overview of electronic device models, focusing on vacuum tubes and semiconductors. It explores the physical principles, emphasizing time constants, junction capacitance effects, and circuit design impacts on operational frequencies. The analysis includes the influence of wire characteristics on resistance and performance, as well as semiconductor properties like energy gaps, doping, and p-n junction behavior under different biases.