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Components | Study | Construction | Projects | 555 timer and other pages
These pages will help you identify components, read their values and learn about their functions.
Cable, flex, lead, wire... find out what these terms mean.
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Plugs, sockets, battery clips, etc.
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Rectifier, signal and zener diodes.
Light Emitting Diodes
Electrically operated switches.
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Fixed value resistors and their colour code.
SPST, DPDT etc.
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Photo © Rapid Electronics
stock a wide range of components, tools and materials for electronics. I am very happy to recommend them as a supplier.
Also known as 'chips'.
Read about the 555 timer and its circuits.
CMOS logic ICs,
gates, counters etc.
TTL logic ICs,
gates, counters etc.
LDRs, thermistors, piezo transducers, loudspeakers, buzzers, bleepers, and inductors.
Suggestions of what components to buy and how to organise their storage.
Care of components.
Projects to build without soldering, detailed diagrams, parts can be used again.
Find answers to questions such as:
What's a PIC?
What does SMD mean?
And many more.
I'm very grateful to Rapid Electronics for kindly allowing me to use their images on this website.
www.rapidonline.com
A great introduction, this book starts by assuming no previous knowledge then carefully builds up straightforward explanations of how components work, plus practical techniques including wire-stripping, soldering and using a multimeter. The final project uses three ICs to make a great game.
The author, Øyvind Nydal Dahl, has done a great job in providing clear step-by-step instructions with breadboard (or stripboard) layouts as well as circuit diagrams for projects. As Technical Reviewer for the book I've built all the projects myself and I'm very happy to recommend it to anyone looking for a fun and educational introduction to electronics.
As an Amazon Associate, I earn from qualifying purchases. Any book you purchase through the Amazon link helps to keep this website available for everyone to use free of charge.
This section covers the theoretical side of electronics, explaining how circuits work.
Understanding circuits by breaking them down into sections (or blocks) which perform particular functions.
Learn the circuit symbols.
Learn about these important quantities which are vital to understanding electronics.
Learn how to use voltmeters and ammeters.
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Learn about this property and calculate it for resistors in series and parallel.
Find out about the relationship between voltage (V), current (I) and resistance (R).
| V = I × R |
Find out about the relationship between power (P), current (I) and voltage (V).
| P = I × V |
Properties of electrical signals.
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Learn how they work.
Transducers are input and output devices such as thermistors, LDRs, microphones, LEDs, buzzers and loudspeakers.
Learn how they work.
Learn about this property and calculate it for capacitors in series and parallel.
What are they?
Find out about these types of systems, plus logic signals:
True = 1 = high = on
False = 0 = low = off
Learn about the types of gate, truth tables and combining gates in circuits.
Plus binary numbers.
Electrical quantities with their standard symbols and units.
Also the unit prefixes:
m, µ, n, p, k, M, G, T
This excellent book is widely regarded as essential for anyone wishing to seriously study electronics. Although topics are covered in considerable depth it is written in a relatively easy, informal style with practical examples. Highly recommended.
As an Amazon Associate, I earn from qualifying purchases. Any book you purchase through the Amazon link helps to keep this website available for everyone to use free of charge.
Temporary circuits.
Projects to build without soldering, detailed diagrams, parts can be used again.
Permanent circuits, requires soldering.
Permanent circuits, requires soldering.
Learn how to solder.
stock a wide range of components, tools and materials for electronics. I am very happy to recommend them as a supplier.
Identify components and read their values.
Suggestions of what components to buy and how to organise their storage.
Photo © Rapid Electronics
The projects have * ratings to show how difficult they are:
* Easy projects suitable for beginners.
** Moderate projects with one or two ICs.
*** Harder projects with three or more ICs, these require a little experience.
The Electronics Club projects are provided in good faith but no responsibilty is accepted for their accuracy or suitability for any purpose; you use them entirely at your own risk. All the projects have been built and tested to ensure they work but if you find an error please tell me so that I can correct it as soon as possible.
Projects to build without soldering, detailed diagrams, parts can be used again.
A very simple project which can be used to test components and connections.
A good first project to check your soldering skills and learn to identify components.
The LED flashes 3 times per second.
Flashes briefly.
To 'unlock' press all the correct switches at the same time but not any of the cancel switches.
The circuit starts timing immediately when switched on and bleeps when the time period is over.
The time period can be up to 10 minutes.
UK traffic light.
Eight LEDs flash in an apparently random sequence.
A 4026 counter and driver IC is used.
Flash sequence.
Eight LEDs.
18 LEDs flashing.
The circuit detects a sudden shadow falling on a sensor.
Natural light works but a beam of light is better.
18 LEDs flashing.
Press switch to throw.
Designed for 2-4 contestants but can be adapted for more.
First switch pressed lights its own LED and sounds the bleeper.
Designed for testing computer network leads but can be used to check any lead with up to 8 wires by using suitable connectors.
Learn how to solder.
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Identify components and read their values.
Suggestions of what components to buy and how to organise their storage.
Project kits from Rapid Electronics, these are supplied with a PCB for easy construction.
An introduction to the 555 timer.
A circuit which continually switches on and off, producing a square wave:
A circuit which produces a single pulse whenever it is triggered:
A simple memory circuit, also known as a flip-flop. It is stable with its output in both the high and low states.
An inverting buffer circuit (like a NOT gate).
Projects to build without soldering, detailed diagrams, parts can be used again.
Learn the circuit symbols.
Find answers to questions such as:
Why is the letter I used for current?
What is a short circuit?
Pease bear in mind that I sometimes receive too many emails to answer them all.
I'm very grateful to Rapid Electronics for kindly allowing me to use their images on this website.
www.rapidonline.com
