Equivalent Series Resistance Meter (ESR Meter)

Project Description This project was conceived as a way to enhance the collection of test equipment on my test bench. I buy a lot of o...

AC Current Monitor

AC Current Monitor Senses high current-flow into power cables No wire-cutting, three versions available Circuit diagram: Parts: R1,R2...

Simple Capacitance Meter

Simple Capacitance Meter Operates in conjunction with a voltmeter 1pF to 22µF in six Ranges - 9V Battery supply Parts: P1_____________4...

Fox and Hound cable tracer

The "Fox" and "Hound," made by Triplett Corporation (http://www.triplett.com), are a transmitter and receiver for traci...

Fox - Hound, Cable Tracers

Fox - Hound, Cable Tracers, Signal Tracers, Line Tracers - whatever you want to call them   This is the device that allows you to trace wire...

Cable Tracer

The transmitter is built on a small length of PC board, cut into lands with a file. The photo clearly shows how all the components are moun...

Square wave oscillator as wire tracer

The tracer works by placing a square-wave signal on the line to be traced, The square wave is full of harmonics. small radio placed close ...

CPU Power Supply tester

Cara test PS CPU tanpa terhubung Mainboard: Sambungkan kabel warna hijau dengan kabel warna hitam /Ground ,.jika fan power supply(PS) jala...

Invisible Broken Wire Detector

Portable loads such as video cameras, halogen flood lights, electrical irons, hand drillers, grinders, and cutters are powered by connecti...

Capacitive Sensor

  Circuit description: The purpose of this circuit is to animate shop-windows by means of a capacitive sensor placed behind a post-card-lik...

Bipolar Stepper Motor Control

First, we want to explain how such a controller works and what’s involved. A bipolar motor has two windings, and thus four leads. Each win...

The Home-Brew Spot Welder

Spot welder used to weld two pieces of metal together. Welding is achieved using sour modern that passes throught metal pieces and wel...

Infra-Red Remote Control Tester

This little circuit is invaluable for quick go/no-go testing of just about any remote control transmitting infra-red (IR) light. The test...

Contactless AC Mains Voltage Detector

This is a CMOS IC (CD4033) based circuit which can be used to detect presence of AC mains voltage without any electrical contact with the ...

Magnetic field meter

These days when electronic circuits can be found almost anywhere, there is, some people fear*, a different kind of environmental pollution. ...

LC meter, Coil Capacitor meter

This LC meter circuit can measure coils and capacitors. When Lx or Cx is connected in the circuit the oscillator frequency will decrease and...

ONLINE ELECTRONIC CALCULATOR LINKS

  ONLINE ELECTRONIC CALCULATOR LINKS Amateur radio and audio calculators All Measure Measure, conversion table and calculators unit...

Color Sensor

Colour sensor is an interesting project for hobbyists. The cir- cuit can sense eight colours, i.e. blue, green and red (primary colours);...

Function Generator Circuit

Description. The ICL8038 is a function generator chip, able of generating triangular, square , sine, pulse and sawtooth waveforms . Fr...

LED based transistor tester

Description. Here is the circuit of a very simple transistor tester which used two LEDs for displaying the condition of a transistor. Bot...