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Voltage Booster | Auto Adjust Voltage

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checking zener voltage with resistor

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Potentiometer Secrets Revealed: What's Inside?

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3 simple ways 5V to 3.7V - Reduce Voltage with Resistor

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Build a DC Ammeter from a DC Voltmeter !

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Reduce Voltage With Resistor

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Handpiece Problems? Try This Simple Fix: Carbon Brush Replacement

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How to protect circuits from reversed voltage polarity!

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Reduce Voltage with Variable Resistor - Potentiometer Voltage !

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3 simple ways 12V to 5V - Reduce Voltage with Resistor

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LED Resistor Calculation - How to Reduce Voltage with Resistor !?

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Reduce Voltage Safely and Easily with Resistor Voltage Dividers

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samsung printer cartridge refill

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How to Make a Rechargeable Emergency LED Light | DIY Emergency LED Flashlight

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DIY Phone Charger Upgrade: 5V to 9V/12V BOOST! (Shocking Results!)

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Device Tester (Lamp Test): The Electrician's Secret Weapon for Repairs

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Voltmeter and ammeter hacks! Calculate the power of the device with simple tools

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Dual Display Voltage and Current Meter: The Easy Way to Measure DC Power

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LED voltmeter project for school

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Build a Simple & Cheap 220 to 12 Volt Converter (Step-by-Step Guide)

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Build a Zener Diode Tester for Under $ 3 A Must-Have Tool for Every Maker!

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Convert AC to DC voltage

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How To Convert LED Bulb Into A Tester / Diy LED Tester

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How to Make multi channel Voltmeter AC&DC

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How to test a TRANSISTOR with a multimeter PNP or NPN / find base collector emitter

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How To Convert Bridge Rectifier 2 Phase To 3 Phase

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Thermal fuse testing & experiment.

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How to Convert 230VAC to 600VDC!

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How to Increase Current Transformerless Power Supply Circuit

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How to Make Dual power supply with automatic adjustment of the output voltage

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convert 220V ac to multi output DC

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Turning on the warning LED before the mobile phone rings

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High current LED driver without transformer

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How To Make Voltage Doubler Circuit / 12V 24V 48V

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Reduce voltage with ZENER

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convert battery 12v to adjustable power supply

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how to calculate the ups battery backup time

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The negative wire test using salt water!

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make 3 Output Power Supply with Regulator

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how to make regulator voltage tester

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convert 220V AC to 5V DC without Transformer

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How a Reed Switch Works

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Top 3 Reverse Voltage Protection Circuit

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Convert 220V AC To 110V AC

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Adjustable Power Supply 5-12V with LED Display

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All LED tester with mobile charger input

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make 2 channel flasher adjustable speed

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how to make Flashing LED using LED!!

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AC output short circuit protection

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Increase and decrease the voltage with the push Button!

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make portable tester for any LED !

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What's inside the electronic components?

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5 mistake with charger module 4056 type-C