Making Simple Buzzer circuit
This is buzzer circuit easy to build with small size,cheaper using normal transistor and small piezo speaker can use for 3V to 12V as use parts resistors[…]
multivibrator transistor circuit
5V Switching Regulator Circuit using transistors
This is LM317 Low dropout regulator 5V 2A using TIP41, The voltage input is 5.1V DC is converted into 5V output,while maximum output current to 2A by TIP41 […]
3 LED flasher using 3 transistors astable multivibrator
We used the two LED flasher with transistors only. Today we come to experiment the 3 LED flasher circuit by 3 transistors astable multivibrator,
Creating a simple 1.5V LED Flasher circuit
Creating simple 1.5V LED flasher circuit, With just one AA battery, it’s efficient enough to last for 1 year. and uses very few components.
Doorbell circuit using transistors and IC-555
The 2 tone doorbell circuit, which is an electronic buzzer types,but them has melodic sound than general electric bell. People have seen two tone bell sound