Gate Alarm Circuit Diagram

Figure 1 represents a cheap and simple Gate Alarm Circuit, that is intended to run off…

Benefits Between Open Circuit and Closed Circuit

Open Circuit and Closed Circuit Introduction Have you ever seen an open circuit diagram and wondered…

How To Make Clap Switch Diagram

How To Make Clap Switch Making a clap switch diagram is far from the most thrilling…

Dog Repellent Ultrasonic Circuit

Repellent Ultrasonic Circuit When we hear the word “Ultrasonic” we often refer to bats and dolphins’…

Morse Code Decoder Schematic Diagram

Morse Code Morse Code is used in telecommunication; it is a method of transmitting and receiving…

Bringing NiCd’s From The Dead

The failures the article talks about occur in multi-cell Ni-Cd battery packs, and are due to…

Video Amplifier Diagram

” Got some questions about video amps. I’ve seen a NE592 used as a video buffer…

FM Oscillator Circuit

Here’s a dandy circuit for a VCO and buffer that operates across the entire FM broadcast…

LED Display Controller Circuit Diagram

Display Controller ” I would like to make a big LED scrolling display (like the ones…

Quiz-Show Switch Circuit Indicator

Switch Circuit Indicator "Name something you eat with eggs." -<bzzzzt!>-"Fiberglass." Here’s a simple, cheap circuit that…

Pressure Sensor Circuit Diagram

Pressure Sensor This sensor is based on the Lucas NovaSensor NPC-410 Series pressure sensor. The circuit…

Constant Temperature Circuit

Introduction Description: This circuit is a generic low power temperature controller that can be used for…