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Resistors and Resistor Color Code -
A quick look at resistors and resistor color codes with pictures and charts.

Capacitors and Inductors -
Increase your knowledge of capacitors and inductors with these simple explanations.

Simple power supplies like this are sometimes called battery eliminators when they are made to output a particular voltage, 9 volts for example. If they are made adjustable, then a wide range of useful voltages can be produced from one simple power supply.

This basic electronics circuit is actually a very low frequency square wave oscillator. The frequency of the square wave output determines the flash rate of the light emiting diodes. You see similar circuits in use by cities and highway departments as flashing warning lights.

This is an interesting combination of two basic electronic ciruits, an oscillator operating in the audio frequency range and an audio amplifier that allows a speaker to be connected to the oscillator. By using the amplifier to amplify the output of the oscillator, you can obtain a loud sound that can be used for an alarm or anything else that requires a loud audio tone.

Zener diodes are an interesting type of diode. They conduct in the forward biased direction just like ordinary diodes but it's the reverse biased condition that's interesting because the voltage drop across the diode in the reversed direction is constant making them a good voltage regulator.



Soldering Electronic Components

Soldering Skills and Printed Circuit Boards

If you are new to soldering electronic components, here are a few helpful hints. Use a small 25 to 30 watt iron with a good pointed tip. When you first use the iron, as soon as it heats enough to melt solder, place a small amount of solder around the tip.

Next wipe off the excess with a damp cloth and then repeat the same process. Now you will have a "tinned" tip and it will solder much better. Remember to heat the wire and apply a small amount of solder from the other side. If you have heated the wire enough the solder will flow in and around the joint.

The biggest mistake is to use too much solder and not enough heat. You will know when it's right, it will look shiny with no cracks.

On printed circuit boards, don't let the solder pool and flow between the copper traces or the thing won't play.

It only takes a little practice to get it right. So are you ready to practice? Good, here is what you need to do next.

Go shopping for a good low wattage soldering iron that works but is not expensive. No need to spend alot of money on an iron right now.

Later you will probably want to get a nice soldering station, but for now, let's not spend too much money while learning to solder and build working circuits. While you are there, don't forget to pick up a roll of solder. Remember to use only rosin, or water soluble, core solder.

Never use acid core solder as the acid will eat away the copper printed circuit board and that will be the end of that project!

Soldering Electronic Components isn't hard it just takes a little practice.


Solder And Build is a brand new website that once you're a member everything there is FREE!

Solder And Build offers you free downloadable PDF reports on soldering along with an 8 minute soldering tips video and a growing list of simple electronic projects to build along with free software to download.

Easy To Build Projects Like These:



Along with...
    How To Build a Bargraph Light Meter
    How To Build a Infrared Voice Communicator Part One The Transmitter
    How To Build a Infrared Voice Communicator Part Two The Receiver
    How To Build a Microphone Preamplifier
    How To Build a Single Output 4 Input Audio Mixer
    How To Build a LED Tone Transmitter
    How To Build An Audio Light Detector
    How To Build An Electronic Bell


As well as free soundcard software and links to useful free tools.

PLUS from time to time I'll be adding new projects and more surprises.

You get all this for a ONE TIME membership fee of... guess how much? $20? $10? $5?



That's Right A Lifetime Membership For 1 Buck!
No Upsells, No Downsells, No Nothing!
The price is good until I come to my senses.
The site is now open and there is a "buy now" link to click to become a member.
Start saving your pennies and dimes. (I do reserve the right to limit the membership)


or if you can't see the button Click Here










nikola tesla alternating currentOff The Subject But Interesting...

This is a little off the subject, but if you have ever heard of Nikola Tesla you might know about his involvement with alternating current and his battles with the Edison Company, later to become General Electric, which at the time, late 1890's, was building direct current motors and generators.


Anyway, Tesla has been sort of labeled as a "weird inventor scientist" but as it turns out many of his ideas hold water today!


NEW Video Concerning Nikola Tesla And The Tesla Effect (3:40)


A special website with Little Known Tesla Information Find out what we now know
about the old weird scientist himself.





FREE Basic Electronic
Article Downloads...


Also download any of the eBooks in the Basic Electronlcs Home Course

The Basic Electronic Library And Bookstore









Electronic Trouble Shooting Tips





Testing Electronic Components





Find Resistor Values Without A Schematic



Links To Other Basic Electronics Articles On This Site
Resistors | Capacitors and Inductors | Soldering Tips | Simple Power Supply | Two LED Flasher | Audio Oscillator & Audio Amplifier | Zener Diode Tester

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