Often drivers forgot to turn off lights when parking. They cannot start the machine, ran out battery. This Headlight Warning buzzer circuit can help.
Do you love music? Imagine we can build power amplifiers system. Sound good, doesn’t it? Here are many circuits. For example, about Audio amplifiers, bridge amplifier, Using transistor or IC or MOSFET, Mixer, Graphic Equalizer, Preamplifiers. And, Sound generators, tone controls, Melodies, Sirens, Animal sound, effect voices. Even, Burglar alarm, and more. I cannot explain to you all. But sure I do not like to see you miss them.
The Mini stereo tone control circuit with IC, circuit diagram use just IC-TDA1524 and a few parts, It adjust Volume, Balance, Bass, Treble in small circuit
Let make it play with children.
See, this is a TDA2003 amplifier circuit, popular IC from SGS Thomson. Why we should use this? It is the normal operation of the integrated circuit, the music amplifier for…
Simple A/D amplifier circuit!
This is simple music keyboard circuit. The origin frequency sound circuit model astable multi vibrator. if press switch S1 the circuit will begin the work. [...]
Use NE556 better. Why? Imagine you use often the 555 timer circuit. It is so great, right? Of course, we should improve our circuit. Small and save money. NE556 is…