TDA2003 10W audio amplifier circuit
See, this is a TDA2003 amplifier circuit, a popular IC from SGS Thomson. Why we should use this? It is the normal operation of the integrated circuit, the music amplifier for car audio radio sound. Which uses a supply voltage from a 12V car battery. But this circuit is adapted for use in a home. … Read more
Simple nicad battery charger and discharger circuit
Nicad battery as the battery is good. Commonly used. If you do not have a battery charger. I recommend this is Simple nicad battery charger circuit. It is suitable for beginners. Read more
Simple capacitance measurement circuit using IC-555
Simple capacitance measurement circuit using IC-555, with the frequency counter as digit number display, that can measure the period.To show value directly […] Read more