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Non-Contact Electric Test Pen Voltage Detector Tester AC 12~1000V Voltage Tester For Sale

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Non-Contact Electric Test Pen Voltage Detector Tester AC 12~1000V Voltage Tester:
$10.00

VENLAB Voltage Tester, Non Contact Voltage Detector, Circuit Tester Dual Range Voltage Sniffer 12V-1000V/48V-1000V, Live Wire Tester with Alarm and Flashlight (VD-200)

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HANMATEK 12~1000V AC Electrical Tester Pen Sensitivity Electrical Non-Contact

$13.99

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12-1000V Dual Sensitivity Electrical Tester Pen Non-Contact AC Voltage Detector

$12.17

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Non-Contact LCD Electric Test Pen Voltage Car Digital Detector Tester 2.5-32V

$11.89

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Popular Tutorials

Alarms and Indicator Circuit diagrams

• Power supply failure alarm
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• Rain Alarm
• A simple electronic buzzer
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Audio electronic circuits list

• Stereo Channel Selector
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• Infrared Head Phones
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Circuits for Cars/Motorcycles

• Charge Monitor for 12V lead acid battery.
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Computer/PC Hardware Circuits :

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Design Ideas :

• Soft ON/OFF switch

Fun/Games Circuits :

• Electronic Scoring Game
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Signal/Sequence/Misc. Generators :

• Simple IF Signal Generator

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Lights & LED Circuits :

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Motor Circuits :

• Automatic Speed Controller for fans & Coolers
• Soft Button type Motor Direction Controller
• Super simple stepper motor controller
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Music related Circuits :

• Digital Volume Control
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< Oscillator Circuits :

• Simple variable frequency oscillator
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Power Supply (PS) Circuit diagrams :

• Negative supply from single positive supply
• Self switching Power Supply
• Ultra low drop linear voltage regulator

Radio,transmitter,receiver circuits :

• Car anti theft wireless alarm.
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• Remote control using VHF modules
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Remote Control Circuit diagrams :

• Remote control using VHF modules
• Remote control using telephone
• A simple Remote control Tester
• Clap Activated Remote
• Radio Remote Control using DTMF
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Robotics related Circuits :

• Magnetic proximity sensors
• Color Sensor
• Super simple stepper motor controller

Sensors :

• Magnetic proximity sensors
• Dew sensor
• Color Sensor
• Metal Detector
• Optical toggle switch using a single Chip

Telephone Circuit diagrams :

• Telephone Ringer using 556 dual timers
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• Telephone line based audio muting and light on circuit
• Having secrecy in parallel telephones
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Test & Measurement Circuits :

• High Resistance Voltmeter
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