This is indicator circuit to indicate that there is blown fuse, it will show the condition of fuse through LEDs.…
This is the circuit diagram of electronic quiz button table. This circuit is simple, easy to built and of course…
Here the low resistance connection tester which can be used as cable or wire tester, soldered joints and other types…
This is the circuit diagram of 24 Watt class A linear audio amplifier, built and tested by Marc Klynhans from…
This is the circuit diagram of 18W audio amplifier. The circuit is quite simple and inexpensive to built. It uses…
The DS1669 is an electronic digital rheostat manufactured by Dallas Semiconductor. This component has a function similar to digital variable…
This is the circuit diagram of stereo tube amplifier using 6SQ7-GT and 6V6-GT. The tube amplifier circuit is uses the…
This is the circuit diagram of car audio system anti theft security which can be effectively used to protect and…
This is the 'special' circuit design of power supply failure alarm. The vast majority of the power supply failure alarm…
Here's the circuit diagram of a 70W stereo power amplifier which built using single power IC STA550. The circuit is…