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Preparing a Schematic
PCB Concepts and Materials
Circuit Board Design Class
Make Your Own FM Radio
Arduino Controlled ATX Power Supply
Seven Segment Display Tutorial
A Compact, Arduino Altimeter for RC Planes
Arduino Waveform Generator
You should buy a cheap soldering iron just for the salvaging purpose, but if you intend to take electronics seriously, I suggest you invest on a temperature controlled iron.
Free Electronic Samples
DPScope - Build Your Own USB/PC-Based Oscilloscope
How To Remove Camera Lens From Old Phone
Cell Phone Night Vision - Under $10
Let's learn about Super Capacitors! (A Practical Guide To Super Capacitors)
HI-FI 4 Channel Audio Amplifier VERY Simple and CHEAP!!!!
Transistor Amplifier Build
Bluetooth wooden speaker box
Build A Pair of Stereo Speakers
Mounting Speakers for Under $5
How to Build Custom Speakers
DIY HiFi Gainclone Power Amplifier (2x68w, Class AB-A, LM3886)
Make your first Serious Amplifier
DIY Single Ended Vacuum Tube Amplifier
Recycling old car radio into an audio amplifier
Design your own reference bookshelf speakers
DIY HiFi Bookshelf Speakers (Studio Reference)
Building an Electronics Enclosure
20 watt stereo amplifier-simple and very cheap
Practical Guide to LEDs 1 - Pick your LED!
DIY 10" Home Subwoofer
How to Build a Simple Sub Box
DIY Bicycle Turn Signals
Anyone can make this 10W+10W amplifier
Active Sound Mixer
Make your own VGA cord of CAT5 cable!
Passive Audio Mixer w/ Channel Volume Control
Vga breakout cable.
Hacking an old laptop into a 3D projector
DIY Multimedia LED Projector (video manual)
Pocket-Size Power Supply
DIY led desk lamp
LED lamp for your workspace/ desktop/ table...
The cheapest DIY SoftBox (studio light)
DIY alcohol stove-primus from soda cans
Motion Controled Minecraft using MPU 6050 and Raspberry Pi
How to make an HTML page using Notepad/TextEdit
D.I.Y Card Electric door lock
Tool Tip: How to Salvage PCB Parts
High Power LED Driver Circuits
GUIDE TO LED PROJECTS
Connecting a telephone handset to your cell phone
Audio Amplifier with salvaged parts
TDA7052 2 watt audio amplifier
Portable - Mini Amplifier Speaker
Simple Class D Amplifier from Common ICs
Need a very cheap power supply or wall wart but can't find the right voltage?
Pocket 10 watt amplifier
10W R.M.S. Audio amplifier
Listen to Shortwave Broadcasts on an AM Radio
DIY IR (Infrared) Illuminator - Night Viewing With Your Camera
Extension Cord Reel
Automatic LED night light (Using 555 timer)
DIY Project Board
A Sleak Bench Power Supply From PC PSU
Switch box for your sound/headphone
Charging Station with individual switches
AC to DC converter=diode bridge
DIY BRIDGE RECTIFIER (BETTER LOOKING)
Simple Polarity Checker
Short circuit protection for (almost) any power supply
How to install a dynamo powered Bicycle light.
Toe Saver Night Light (Auto Under Bed Light)
Simple LED replacement for bicycle bulb / front light
How to make Simple LED USB light
Phone Charger using a Computer Fan
DIY Solar USB Charger - Altoids
Refilling SLA's (Sealed Lead Acid battery), Like Refilling a Car Battery
Rework a UPS with Massive Capacity
UPS Battery Upgrade - 1.5 Hours Backup Time!!!
TV Remote Controlled Paper Planes
Wireless electricity transmission circuit
Infrared Transmitter and Receiver
IR LEDs from junk
DIY Studio Condenser Mic
How to blink an Led - Arduino Tutorial
Illuminated Rocker Switch Voltage Conversion
Build your own Variable Lab Bench Power Supply
Audio Mixer Upgrade
High Voltage Spark Gap Tiki Torch
Reusing Old PCB's
How to use an audio mixer (soundboard)
Seven Segment Display
Digital Pulse generator
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