Plant Physiology Analyzer Circuit

In this post we learn about a circuit design which can be used for testing, or analyzing plant physiological behaviors and reactions to various external stimulation.   That trees and plants have a soul has been known to plant lovers and gardeners for a long time. For all those who have never given this a […]

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Digital Temperature Indicator Circuit

This explained digital temperature indicator circuit had been created for computing the heatsink temperature of a big over 1kva power amplifiers, however it may, obviously, be applied for other power amplifiers and even for various other purposes. The thermometer would not just display the heat range of the heatsink on a couple of displays, nevertheless […]

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Transistor Current Gain Tester Circuit – hFE Tester

This hFE or transistor forward gain tester is intriguing due to its ease-of-use and because it allows the use of both PNP and NPN transistors to be assessed. Additionally more the measuring becomes self-governing of the supply voltage of the tester. As the picture displays, the base current of the transistor under check moves through […]

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Simple LED Stopwatch Using IC 555 and IC 4017

In this post we are going to construct a simple LED stopwatch using IC 555 timer and IC 4017 decade counter. The elapsed time is indicated by LEDs which illuminates in a sequence. Stopwatch is very important piece of equipment in sports, cooking, laboratory, medical etc. They are used to measure short period of time […]

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