Many people think multimeter can test any electric part, but this is not always safe especially for semiconductor. Here, the article for Tester Probe Circuit show how to make one easy and safe tester only for semiconductor and this tester is easy to build as it uses small current which is good to test many […]
Neon Tube Flasher Circuit
Neon light look very nice but it needs much electricity to work; this Neon Tube Flasher Circuit show how to make special circuit to turn ON and OFF neon light using small battery with low voltage DC. WARNING: Making high voltage circuit can be dangerous, so do this only when adults are watching. What is […]
Simple FET Two Lamp Flasher Circuit
To begin with, this simple FET Two Lamp Flasher Circuit connect same like simple astable multivibrator and also they make easy circuit for two lamps flashing one after other. What is a FET Lamp Flasher Circuit: The circuit using FETs mostly used for flashing lights or bulbs and it also uses some other parts but […]
Simple Adjustable Oscillator Circuit using Two Transistors
To begin with, this article for Simple Adjustable Oscillator Circuit using Two Transistors show how to make small sound circuit using only two transistors! Hence, when we turn the knob the sound goes high like beep or low like growl, also we can use four AA battery or small wall power to run this circuit. […]
Simple Car Fused Tail Lamp Indicator Circuit
Simple Car Fused Tail Lamp Indicator Circuit tell how to make one easy circuit for checking car back lights are ON or not. Also, it uses one common part called resistor to know if light are getting enough power and if light goes OFF the circuit gives an alarm to show problem. Moreover, this thing […]
Crystal Tester Circuit
Did anyone ever think how quartz watch or radio keep time so good? the answer is it uses one special thing called crystal oscillator. Also, this post for Crystal Tester Circuit show how to make small tester to check if crystal is working or not. Tester are made with simple parts like transistor, resistor and […]