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.
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September 11, 2019
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.
TDA2050 amplifier stereo 35W-75W
If you want build hi-fi power amplifier about 30watt to 50Watt or 75 watt. Recommend use TDA2050 below, builds by the integrated circuit and PCB layout.[...]
August 31, 2019
TDA2020 OCL HI-FI Power Amplifier, 20W to 80W
Do you want low-frequency class B power amplifier? See TDA2020 may be one of choice that you not should miss. Gives 20W to 80W with helping from a transistor.
August 29, 2019
BA5406 amplifier Stereo 3W
This is a small Stereo amplifier 3W + 3W using BA5406-IC. It use 12V power supply as source of this project. and use a few part so easy to build.
August 22, 2019
Transistor stereo bass booster
This is a bass booster circuit that use transistors as base. It is designed to increase a low frequency of audio on cheaper than ICs or normally circuit.
August 21, 2019
100w amplifier circuit with PCB
This 100W amplifier circuit by transistors, but very well OCL amplifier schematic.Use transistor MJ15003,MJ15004 as main. Power supply +38V 0 -38V 3A. [...]
August 21, 2019
Simple transistor intercom circuit
See simple intercom circuit using transistors and a few parts. So easy build and cheaper than ICs. For a small home and learning.
August 20, 2019