This circuit can be used with a stereo headphone for amplifying a low level input signal into a sufficiently high output signal in the headphone. The circuit diagram of the […]
Snooze Delay Timer Circuit
You can switch ON the “Snooze” function by pressing the S1 button and add a desired delay to the connected alarm The alarm is muted for some time so that […]
Simple Infrared Transmitter Circuit
The presented simple infrared transmitter circuit design can be used in the form of an infrared remote control, with a frequency modulated tone, to operate a complementing IR receiver circuit. […]
Magnetic Proximity Switch Circuit
This magnetic proximity switch circuit can be used to switch a load ON/OFF when a magnetic field is detected. How the Circuit Functions The Magnetic Proximity Switch Circuit is based […]
Simple Fire Alarm Circuit
The post discusses a simple fire alarm circuit that you can build and install at home or shop for detecting a fire hazards and sounding an alarm. At the point […]
Dark Room Timer Circuit
Working in a darkroom is always fraught with problems. You surely know Murphys Law of; but Let’s not go into that here. Suffice it to say that normal lights cannot […]