Insects and mice repellent circuit using IC556
Use high frequency out of the piezo speaker and IC-556 is base as oscillator between 22kHz and 56kHz
This projects is safer and more convenient. Read more
astable oscillator circuit
How to make fast blinking lights for bike
This is a fast blinking LED bike light circuit For safety when the bike at night. We use two-NPN-PNP transistor oscillator circuit and RC circuit only show on 4 LEDs use low current. We take the four LEDs to parallel. Because of each LED use voltage about 3 – 4.5VWe want this circuit for a … Read more
Four Lamp flasher circuit using transistors
If you want one A lamp flasher circuit using transistors that flashing for general to use. I have many ways, But today you see this three of the lamp flasher circuits.[…] Read more
Simple VCO using schmitt trigger using 74HC14
This is Simple VCO circuit using schmitt trigger using 74HC14__Hex inverting, which inside have 6 schmitt trigger, but applied one frequency controller Read more
LM3909 Frequency generator | LED flasher circuit ideas
LM3909 Frequency oscillator generator / LED flasher using low voltage and a few parts. There are 7 circuit ideas. You will like LM3909! Read more