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
Linear opto isolator circuit
This is the linear opto isolator circuits that use a few parts and cheap. In circuit we use the opto compiler ICs number of MOC 5010 as based. [….] Read more
Power amplifier circuit diagram with PCB layout
SEE! Many Power amplifier circuit diagram with PCB layout. So easy to builds. You can choose 0.5W to 1,200W. Using transistors, MOSFET, IC on a lot types Read more
4 types of Preamplifier circuits using Transistors
This is Simple preamplifier circuit using transistors,low noise and easy to builds we have many circuit below, simple to difference projects […] Read more