2 channel OCL 100W stereo audio amplifier circuit. It uses STK4231 IC products to create a simple one all PCB, small and best economical.
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.
This is 100 watts OTL amplifier circuit using transistor,For small PA system, in the village. The sound is very loud and very durable,easy to builds better [...]
The first simple mosfet amplifier circuit with PCB, It most complete circuit. As a 60 watt power amplifier, this is sufficient for normal use in my home. [...]
You have a private area, right? If you have this motion detector alarm circuit. It will reduce your worries. Imagine a big bear is coming to the behind of your house. Then, the siren alert. The big bear is shocked and runs away. You and your family are safe. Is it great?
This is a high impedance small amplifier circuit. It can give power output about 1W with connecting to a 9V power supply. The advantage of this circuit is using dual…
We sometimes need a Simple microphone, But we cannot find it. This circuit can be help us modify the normal speaker to microphone as pre-mic circuit.