On-off SCR control circuit with logic gate IC
This is On-off SCR control circuit with logic gate IC. SCR will turn ON when input A gets bias current. But SCR will turn off if its input B gets current. Read more
3 Intercom circuit using LM386 – OP-Amp ICs
See Intercom circuit using LM386 and other IC. louder transistor version. And easy and cheap. With Condenser MIC and Speaker, longer cable. Read more
8 Low Battery Voltage Alarm indicator circuits
Why your circuit does not work? Because the battery is run out. These low voltage indicator circuits may helpful for you. If you can know before and change a new one right now. It makes you not have to waste time when using those projects. Read more
Surge protection circuit for power supplies
The surge protection circuit important! Sometimes, our electrical appliances may damage easily by little high voltage surges. We can protect this problem. Read more
FM wireless microphone circuit diagram
This is a FM Wireless Microphone circuit Which we add one transistor in the RF amplifier. So this circuit have two resonance circuits and also two trimmers. This cause have Higher efficiency and transmission far up. Read more