Here the cheap hearing aid to help people who have hearing loss. Commercially available assistive hearing devices are quite expensive.…
Here is the remote control tester circuit. This circuit is really a simple and easy tester for verifying the basic…
Here the circuit diagram of low cost water pump controller. The automatic pump controller minimizes the need for any manual…
This is a very simple adjustable analog timer circuit diagram. You can build this circuit just for fun, for newbie…
The above diagram is the schematic diagram of an electronic motor starter circuit. This motor starter protects singlephase motors against…
This is the circuit diagram of audio/video modulator. The circuit will convert an audio and video signal into a UHF…
This is a logarithmic amplifier circuit based on National operational amplifier LM11C. Unusual frequency compensation provides this logarithmic converter a…
You can easily activate the LED from home electrical power line with this circuit diagram. You just need to add…
Here the Arduino UNO schematic diagram (click to enlarge): About Arduino UNO: The Arduino Uno is really a microcontroller board…
The following diagram is the circuit diagram of telephone amplifier, build based small amplifier IC LM386. This is a easy…