An LC meter or Indictance/Capacitance meter is multipurpose measuring device which is ued for identifying unknown inductor and capacitor value quickly. An LC meter is without any doubt essential to […]
Simplest FM Radio Circuit with High Reception Quality
As far as I know this may be the easiest and high quality FM radio circuit that could be built by any new hobbyist. In addition, this circuit’s FM reception […]
Designing a IC 723 Power Supply with Variable Voltage and Current
The article provides tips and design considerations regarding building a well optimized IC 723 regulated power supply circuit. IC L146 is the improved version of IC 723 which can be […]
Musical Doorbell Circuit with Many Melodies – Christmas Carols, Big Ben, and More
As seen in the diagram the main stages of the circuit is built-in inside the musical chip in the form of oscillator, frequency divider, drive ROM, a ROM having 512 […]
Two Transistor Voltage Doubler Circuit
The following small circuit will create a DC output that may be nearly 2 times the supply voltage. A square wave input is necessary of adequate amount to switch T1 […]
1 Hz to 1 MHz Frequency Reference Generator Circuit
This circuit is a universal frequency generator, you can use it for many frequency and time period testing applications, so it is quite flexible. It is mainly suited for gate […]