Over the recent weeks here at Hackaday, we’ve been taking a look at the humble transistor. In a series whose impetus came from a friend musing upon his students arriving with highly developed ...

In order to achieve useful amplification from a transistor, the transistor is generally biased in the forward-active region (FAR). The FAR is the region of operation of the transistor where ...

In this lesson, students build two circuits and explore how transistors function. When Bell Labs introduced the transistor in June of 1948, a spokesman proudly announced "This cylindrical object . . .

In our subsequent discussion we will denote time-varying quantities with lower case letters and lower case subscripts. We will represent average (DC) values with upper case letters and upper case ...

Photocouplers optically links, via transparent isolating material, a light emitter and a photodetector. Used as an interface between circuits with different ground potentials, photocouplers replace ...

Looking at some anecdotal stories as well as some reasonably valid survey data, it seems that STEM-related subjects are getting serious interest from students at all age levels; STEM stands for ...

MIT researchers have engineered bacteria that can function as transistors, allowing them to create “living circuit boards” ...