Imagine our voice is strong but we whisper through a tiny straw to reach our far friend but it wont work. Same is in circuit for Simple Speaker Audio Output Transformer Circuit which works like a megaphone for sound signal. Furthermore, it takes strong signal from amplifier and changes it to fit the speaker so […]
DIY Projects
Simple Transistor Tester Circuit
Transistors are small switches; but how to check if they work or what type they are? then this Simple Transistor Tester Circuit is like a transistor checker. It is an easy DIY project which uses few parts and it also tells us if transistor is good or bad and also shows if its NPN or […]
Simple DC High Low Voltage Cut Off Circuit
If our device need right DC power to work safe then this Simple DC High Low Voltage Cut Off Circuit work like a guard. Also, if battery is too low then circuit stop power to save our device and if battery is too high then also circuit stops power to protect. Hence, this circuit keep […]
How to Make a Simple Op-Amp Circuit
Imagine two whispers one with little louder. Op-amp is smart listener and it hears only the difference and ignores background noise; also it makes small difference bigger using voltage gain. Hence, this Simple Op-Amp Circuit helps boost weak signals in electronics. Circuit Working: Parts List: Components Values Quantity Resistors (All resistors are 1/4 watt unless […]
Gel Cell Battery Charger Circuit
Normal car battery has liquid inside and Gel Cell Battery Charger Circuit uses jelly but not liquid. Jelly make battery strong and work in any position and to charge gel battery we need special charger, as this charger gives right power but not too much. Too much power can hurt battery and special charger keep […]
Simple Automatic Battery Charger Circuit using One Transistor
This post shows very easy way to make Simple Automatic Battery Charger Circuit using One Transistor and with few parts. Also, this circuit charges battery by itself like small machine, as it uses only one transistor, one resistor and one LED. Furthermore the circuit is good for charging 9V battery where LED shows when charging; […]