Wow the engineering world with your unique design: Design Ideas Submission Guide If the standard AND or OR logic elements are easily replaced by diode-resistive circuits ... shown in Figure 2.

A small, simple AM receiver project with only ... that work well for radio reception. The 120k resistor is for regenerative feedback between the Q2 NPN transistor and the input to the tank circuit.

By looking at a circuit diagram of a ... how it operates. This transistor switching circuit uses an npn transistor, a voltage divider (consisting of a \(5 kΩ \) resistor and thermistor) and ...

IT is well known that changes in the d.c. characteristics of transistor amplifiers with temperature ... by minimizing these effects by suitable circuit design, or by the use of thermistors and ...

For many years, we have been employing a very simple ... If the drive transistor’s emitter is simply connected to ground, the relay circuit draws around 58 mA. With the resistor/capacitor ...

There are many cases where a power supply needs an internal current-limiter function, usually built using a current sensor, a control circuit, and a pass transistor. The current sensor itself can ...