A Planet Analog article, “2N3904: Why use a 60-year-old transistor?” by Bill Schweber, inspired some interest in this old transistor and how it’s commonly used, and if any uncommon uses might exist.

Abstract: A single Cole model, which comprises of a lossy fractor (fractor with a parallel resistor), is a commonly reported model for several biosensors. The parameters of the model are often the ...

Abstract: An alternative approximate implementation of an exactly solvable chaotic oscillator circuit is presented. In this implementation, the previously used op amp based NIC sinusoidal oscillator ...

Title Improved auxiliary particle filter-based synchronization of chaotic Colpitts circuit and its application to secure communication ...