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Tech Videos
9th January 2017
Power and watts

A tutorial on electrical power and watts. A practical example of light bulb power measurement is shown as well as a demo on how to calculate appropriate resistor sizes.

Tech Videos
6th January 2017
What is an op amp?

This video shows you the basics of op amps and has an example circuit where you can build an amplifier to take a tiny microphone signal and amplify it to be audible on earbuds.

Tech Videos
5th January 2017
What is an oscillator?

The basics of oscillators - what they are, what they are used for, and a couple of demo circuits with a sine wave oscillator and a square wave oscillator.

Tech Videos
21st November 2016
Learn how an accelerometer works

Have you ever wondered how your phone’s tilt sensing function works? It uses a device called an accelerometer.

Tech Videos
21st November 2016
What is voltage?

What is voltage and what does it do? Learn about volts, coulombs, joules, power supplies and more in this video.

Tech Videos
25th October 2016
Switch mode power supply tutorial: DC/DC buck converters

Switch mode power supplies are a more efficient way to regulate voltage than linear regulators. This video explains buck converters, which are a type of switch mode power supply used to step down voltage. It also shows how to build a 5V 5A power supply using an LM2678.

Tech Videos
10th October 2016
How to charge a LiPo battery with a power supply

How to charge a single cell lithium ion or lithium polymer battery with an adjustable, current limiting bench power supply.

Tech Videos
5th October 2016
What is a schottky diode?

A tutorial covering the advantages and disadvantages of schottky diodes over regular silicon diodes including forward voltage, efficiency, leakage current and recovery time issues.

Tech Videos
5th October 2016
What is a zener diode?

A tutorial on zener diodes and how to use them as voltage clamps, voltage regulators, and how to create audio distortion circuits.

Tech Videos
23rd September 2016
How to build a simple laser tachometer

Did you know you can use an LED as a light sensor? This video shows how to use this phenomenon to build a laser tachometer capable of measuring the RPM of mechanical devices.

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