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Test equipment

Multimeter Tutorial

Oscilloscope Tutorials

Function Generator Tutorial

-> My equipment recommendations <-

Components and concepts

Capacitor replacement tutorial	Transistor / MOSFET Tutorial	Operational Amplifier Tutorial & super microphone circuit
Electrical Transformer Tutorial	Diode Tutorial & How to build an AC to DC power supply	Voltage Regulator Tutorial & USB gadget charger circuit
LM317 Adjustable Voltage Regulator Tutorial	Basic Electricity - What is an amp?	Pulse Width Modulation (PWM) Tutorial
Passive RC Low Pass Filters	Passive RC High Pass Filters	Voltage Divider Tutorial
Inductor basics - What is an inductor?	Inductance basics	Passive RL Low Pass Filters
Inductive Spiking Tutorial	Comparator Tutorial & clapper circuit	Peak detector circuits
Oscillator Tutorial	Amplitude Modulation Tutorial & AM radio transmitter circuit	4 wire (Kelvin) resistance measurement tutorial
Circuit Simulation in LTSpice	"It's not the volts that kill you, it's the amps!"	Laser tripwire circuit / photoresistor tutorial
Fun With Ultracapacitors!	Robotic Cat Toy	Transformers LED Artwork
The world's simplest hand cranked LED flashlight!	P-FET Reverse Voltage Polarity Protection Tutorial

Reviews

OWON SDS6062 oscilloscope review	Cosview MV200UM USB Microscope

Fun!

Exploding electronic components!	RAM "overclocking" failure	Burning stuff with a camera flash!
Resistor burning slowly	Green LED turns red!	Blue 0603 LED under microscope
White LED under microscope	RGB LED under microscope