This Adjustable Voltage, Current Power Supply Circuit using Transistor 2N3055 talks about how to make simple and useful power circuit. This circuit can change voltage and current so it work for many electronic projects. It uses one popular transistor called 2N3055 and some other parts. WARNING: Be careful, High voltage can be very dangerous. Do […]
Transistor Circuits
220V Over Under Voltage Cut Off Circuit using Transistors
This 220V Over Under Voltage Cut Off Circuit using Transistors help to protect electric things from too high or too low voltage. It uses two transistors and some easy parts. When voltage goes too much high or too much low then circuit cuts the power. It is good for home use and might surprise some […]
220V Inverter Circuit using 2N3055 Transistors
This article show how to make a strong 220V Inverter Circuit using 2N3055 Transistors. It can change 12V battery like car battery into 220V electric for home. It is easy to make and does not need many parts, and work very good. WARNING: But be very careful. Homemade inverter can be dangerous always check safety […]
Audio Mixer Circuit using a Single Transistor
Audio Mixer Circuit using a Single Transistor is an small and easy circuit which mixes three sounds. It uses only one transistor which can mix two or three sounds into one. It is good for beginners who want to learn about sound and electronics Circuit Working: Parts List: Category Description Quantity Resistors 2.2k CFR 1 […]
Simple Lie Detector Circuit using Transistors
Have fun making this Simple Lie Detector Circuit using Transistors. Real lie detectors are very hard and complicated so this one is not perfect. But it is fun way to see how body react when stress. This circuit works by checking sweat changes to know if someone tell truth or lie. When people are scared […]
Simple Logic Probe Circuit using Transistors
This article for Simple Logic Probe Circuit using Transistors tell how to make one useful tool called voltage tester. It uses two transistors for checking if some place in circuit have positive voltage. When it find electricity it makes beep sound and small light turns ON. People who want to learn electronics, this tool will […]