A very simple but highly efficient combination lock circuit is shown in the figure. Any type of on/off switches can be used, varying from commercially available inexpensive types ...

A previous Design Idea describes a circuit that uses an astable multivibrator to drive an LED (Reference 1). The circuit in Figure 1 uses a simpler alternative approach. The circuit uses a 2N3904 NPN ...

In the past, an aspiring electronics enthusiast would have started with simple transistor circuits such as a light sensitive switch, a simple electric organ, or an AM radio such as the one ...

This compact guide to the simplest of chaotic circuits and how to build them also serves as a broad overview of the field of chaos, particularly in electronics.

By adding a transistor and differential amp to your thermocouple interface, you can non-intrusively detect these common fault modes in the sensor or its leads; the circuit can ...

Lesson 4 Using Transistors: Let’s Get Transistorized! Overview In this lesson, students build two circuits and explore how transistors function. Objectives • To observe how a transistor functions in a ...

Simple Electronics was part of the imprint’s Learnabout series, and it took the basic premise of its predecessor away from the realm of radio into other transistor circuits.

Field-effect transistors fabricated from carbon nanotubes have been investigated extensively over the past two decades. This study demonstrates a nanotube-based integrated circuit design that ...

Their “atomtronic” battery is based on a Bose–Einstein condensate (BEC) and could be used to supply circuits made from transistors and other components that operate using atomic rather than electronic ...