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:: Home » Meters & Detectors » Page 2

Meters & Detectors

Include: Volt meters :: Sound level meter :: Analog vu meter :: Soil moisture meter :: Digital meter circuit diagram :: Temperature measurements :: Electronic measurement tools :: Frequency meters :: Best battery tester :: Transistor tester project
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Digital multimeter circuit using ICL7107

Last Updated on: April 15, 2022 by Apichet Garaipoom
Digital multimeter circuit using ICL7107/7016

his is Digital multimeter circuit using ICL7107. dc digital meter circuit to smart full function, measure DCV, ACV, DC Amp meter, AC Amp meter, Ohms […]

Categories Meters & Detectors Tags Electronic Test equipments 16 Comments

8 Light sensor alarm or Sensitive Sound Generator

Last Updated on: April 17, 2022 by Apichet Garaipoom
Four Light Sensor Alarm Circuits

These are four light sensor alarm circuits, when be become dark, or Light sensitive switch.Use part is important light sensor LDR light dependent resistor […]

Categories Meters & Detectors Tags LDR sensor, Light Alarm Circuits 5 Comments

Digital voltmeter circuit diagram using ICL7107 / 7106 with PCB

Last Updated on: February 21, 2021 by Apichet Garaipoom
Digital voltmeter circuit diagram using ICL7107 with PCB

Here is simple ICL7017 digital voltmeter circuit easy to build and cheap because it is high technology, by single IC,small number, along by LED 3 digit.

Categories Meters & Detectors Tags Volt Meters, Digital Meter Circuit Diagram 6 Comments

How to test a diode without meter

Last Updated on: May 14, 2022 by Apichet Garaipoom
how to test a diode with tester circuit

This Diode tester circuit can check the diode the good or bad and also can indicate its polarity. using op-amp 741IC and LED for display. […]

Categories Meters & Detectors Tags Electronic Test equipments, IC-741 5 Comments

Non-contact AC voltage Detector using transistors and IC

Last Updated on: June 20, 2022 by Apichet Garaipoom
Make non-contact AC voltage Detector using transistor and IC

Let’s create a Non-contact voltage detector/tester circuit. Around five years ago, I taught my son to build this circuit. And now my daughter also wants to make it. It is a very useful circuit, uses to detect if the AC main wires or any electrical appliances have electricity in them or not.

Categories Meters & Detectors Tags AC power monitor, darlington transistor circuit 18 Comments
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