In this post we will discuss how to build a small weighing scale machine for quickly measuring the weights of small objects or metals, through LED bar graph indications. Undoubtedly, […]
Zener Diode Tester Circuit
Zener tester is a device used for measuring zener voltages and also for plotting variation of zener voltage with zener current. Zener testers find its use in the lab equipment […]
Transistor Gain Tester Circuit
You may have come across many ordinary transistor gain tester circuits designs, but this specific circuit will help you to determine the gain of high frequency RF transistors quickly with […]
Universal LED Bar Graph Indicator Circuit
This universal pointer or LED bar graph indicator circuit can be used with any kind of input sensor that delivers a exponentially varying voltage. This can be for example from […]
Field Strength Meter Circuit using a BJT
Simple field strength indicator circuit enables us to check whether an RF based transmitter is transmitting the signal or not. If any fault is present, that is quickly checked. Basically […]
Simple Electronic Thermometer Circuit using Single LM324 IC
The post explains how to make a simple electronic thermometer using a single LM324 IC and some other passive components. The electronic thermometer does not depend on any mechanical principle, […]