3 Police siren circuits using 555 timer
Here are police siren circuit using IC 555 with PCB layout. It uses IC 555s as a frequency generator and a transistor to drive the speaker. Read more
4 ideas of One LED flasher circuits using transistor, IC, UJT
These circuits are simple One LED flashers that use transistors as the main (first circuit), the transistor UJT (second circuit) and IC Op amps (the Third), Read more below. Using transistors as base The capacitor C1.Resistors R1 frequency generator to Q1. Which acts as a switch.then used Q2 to be the current increase. Operation of … Read more
Treble Booster circuit using IC-741
t is Treble Booster circuit help give the sound of music that you listens to bright go up. it is cheap, easy to build because a few pats with IC-741. Read more
TDA2822 stereo amplifier circuit with pcb & datasheet
People like TDA2822. Me too. Why? Dual Amplifiers in one. Power watts at 1W + 1W at 4 ohms speakers. Is it enough? Read more
CD4011 Oscillator circuit with inverter gates
Here is the tone generator circuit,it is small size. I use IC digital CMOS 4011 quad NAND gate. Read more