Simple VCO using schmitt trigger using 74HC14
This is Simple VCO circuit using schmitt trigger using 74HC14__Hex inverting, which inside have 6 schmitt trigger, but applied one frequency controller Read more
Simple metal detector circuit
This is a simple metal detector circuit, Can find various metal and adjustable sensitivity Easy to use near metal. use IC-NE556-Monostable multivibrator Read more
Signal amplifier circuit diagram with set input-output ratio
A application a Signal amplifier circuit diagram with set input-output ratio, specifically the AC signal amplifier in common electronic circuits. Read more
Adding Capacitance Meter Range for Digital Multimeter
This circuit is built to add capacitance meter range range for a general digital multimeter which is small,cheap and most popular. […] Read more
1.5V Battery Tester Circuit
This 1.5V battery tester circuit uses the LM324 to measure 1.5V / 1.2V AA or AAA batteries. The batteries’ charge is displayed using 8 LEDs. Read more