Simple Moisture Meter using 2N2222
This simple moisture meter circuit uses for level moistness temple of the earth. Fine the value R2 give Meter read the value has 1mA. When the moistness […] Read more
LM386 Audio Amplifier Circuit with PCB
This is an LM386 audio amplifier that can be used with a small 9 volt Battery Operated,Current use as little as 5 milliamps.And amplification up to 500 mW. Read more
3 step down 12v to 9v converter circuits
it is the well-regulated power supply. We use it as the simple step down 12v to 9v converter circuit. It can give the output current up to 4A. Read more
How to make simple inverter circuit diagram within 5 minutes
In two Circuit diagram below,just use 2 transistor,2 resistors and one transformer only. They can convert 12VDC from battery to 220VAC or 120VAC to apply small light bulbs or lamps max 10 watts. Read more
Simple Electronic Stethoscope circuit
This is Electronic Stethoscope circuits. Usually the stethoscope is a medical device that listens to the heartbeat. Which we can make it with the least amount of electronic equipment so easy to make. Read more