7 tone control circuit diagram with PCB layout
Learn! 8 Tone control circuit, Stereo Preamplifier using normal transistors. To control bass and treble effects audio low noise. easy to builds with PCB. Read more
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. Read more
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. Read more
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. Read more
KA2284 Stereo audio level indicator
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 Read more