A transistor tester can be a handy addition to your electronics workbench. This versatile transistor tester design, first presented a decade ago, enables you to quickly assess the functionality of NPN ...

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 to more sophisticated ...

Thermocouples and their leads often have to detect open-circuit or short-circuit faults. However, it is very difficult to distinguish a valid millivolt temperature signal from an open/short-circuited ...

miniature-potato Arduino circuit and code for a simple transistor checker A transistor curve tracer will tell you a transistor's electrical parameters if you know which pin to connect to which test ...

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 ...

Abstract: This paper introduces a methodology to reduce transistor count in circuits mapped using simple gates. The resulting circuits are obtained by combining state-of-the-art optimization tools to ...

Abstract: A self-aligned 12-GHz Si bipolar transistor was fabricated in a relatively poorly equipped laboratory. Emitter and base profiles were implanted and no polysilicon emitter was used. The base ...

While the I²C bus is theoretically capable of running for years without interruption, in practice, sensors eventually “lock up,” halting communication across the entire bus. A simple transistor ...