Food & Water Salinity Tester Meter circuit
SEE a simple salinometer or salinity tester in food and water. Good for health. Using LM324 and few parts and LED display easily use, with 9V batts Read more
0-50V 3A Variable power supply circuit
Let’s build 0-50V Variable power supply circuit, 3A. can adjust output 0V to 50V with overcurrent protection at 3 A. Easy Linear supply. Read more
TDA2050 Amplifier Stereo 35W to 75W
If you want build hi-fi power amplifier about 30watt to 50Watt or 75 watt. Recommend use TDA2050 below, builds by the integrated circuit and PCB layout.[…] Read more
How Do SCR Works and Basic Circuit
The SCR (silicon controlled rectifier) works similarly to switch and relay but faster and quieter. See how it works and example SCR circuit. Read more
TDA2020 OCL HI-FI Power Amplifier, 20W to 80W
Do you want low-frequency class B power amplifier? See TDA2020 may be one of choice that you not should miss. Gives 20W to 80W with helping from a transistor. Read more