High quality tone control circuit low noise
These are many pre tone control circuit, use transistors as main. so low noise,good sound, cheap and easy to buy parts, you can builds with PCB layouts
14 Comments
October 27, 2018
Morse code generator circuit – simple code learning
This morse code generator circuit is suitable for learning basis of communication. Unbelievably, short and long tone can be decoded into letters and text.
October 22, 2018
0-30V variable Power Supply at 3A
Cheap adjustable 0-30V 3A Laboratory DC Power Supply. high efficiency regulator circuit by IC regulator UA723-TIP3055 as power.Protect over load maximum 3A
October 19, 2018
Power Supply Splitter circuit using op-amp
If you need a dual power supply. But you only have a single supply source. So should build this power supply splitter circuit.
October 18, 2018
Battery full charge alarm circuit
The Battery full charge alarm circuit for a general battery charger. It is simplified circuit and cheap, use one transistor BC557 and display with 2 LED.
October 12, 2018
Stereo audio vu meter circuit using KA2284
Here is cheap Stereo audio vu meter circuit with PCB. using KA2284 x2 and 10 LED or 5 LEDs per channel, it is simple to builds and few parts. put projects
October 12, 2018
Isolated DC Converter for Digital using 555
Simple DC to DC converter using 555 timer IC. You can build easily it.
October 11, 2018
Circuit diagram of 555 DC converter for digital