Email Address:
Password:

Lost your password?

This is the legacy website; please use the new website.
Issue 230   View the articles in this issue >>
Electricity-Saving Box Your Own Home Recording Studio
Playback Adaptor For CD-ROM Drives PIC-Based Water-Tank Level Meter; Pt.1

1 Nov, 2007

Electricity-Saving Box

This all started out when a reader sent us a link to an item being offered on eBay. He wanted to know if the claims were true: could this little device really save money by reducing the amount of power used by your electrical appliances? Have Newton, Ohm, Kirchoff, Thevenin et al been wrong all along?

1 Nov, 2007

Your Own Home Recording Studio

Want to make good-quality audio recordings in your own home? All you need is a PC, a hifi system, a good-quality microphone and some software.

1 Nov, 2007

Playback Adaptor For CD-ROM Drives

Ever wanted to use an old CD-ROM drive as a CD player for audio playback? Now you can do it, with this nifty CD-ROM Playback Adapter. It can control one or two CD-ROM drives and has an infrared remote control. A 16x2 line LCD screen provides track information and other data.

1 Nov, 2007

PIC-Based Water-Tank Level Meter; Pt.1

Looking for a water tank level meter that's easy to install? One that's accurate but doesn't need a complicated in-tank sensor? This PIC-based unit uses a pressure sensor to monitor water level and it displays tank level at the press of a switch. It can also send its readings to a base station with an LCD readout via an RF link.

1 Nov, 2007

Rolling Code Security System; Pt.2

Last month, we described the circuitry and gave the PC board assembly details for our new Rolling Code Keyless Entry System. This month, we cover the installation and setting-up procedures and describe the optional SOIC adaptor board, so that you can program the PIC micro out of circuit.

1 Nov, 2007

PIC Programmer SCIO Converter

Programming 18-lead surface-mount SOIC PIC microcontrollers can be a quite difficult because access to the leads is not that easy. This adaptor PC board accepts 18-pin SOIC PIC microcontrollers and plugs directly into a conventional PIC programmer.

1 Nov, 2007

A UV Light Box For Making PC Boards

Even though SILICON CHIP publishes most PC board patterns and/or has them available for download, making your own PC boards has for many been put in the "too hard" basket. Here's one reader's way of producing commercial-quality PC boards at home. He starts off by building an exposure light box with timer.

1 Nov, 2007

Vintage Radio

Pocket-sized valve portable radios. During the era before transistors took over, manufacturers went to extraordinary lengths to produce portable valve radio receivers. None went further than the Japanese, although their miniature valve portable receivers were never marketed in Australia.

1 Nov, 2007

Serviceman's Log

Some days bad things just happen. A fire can occur at any time and when it does, recovering valuable data from computer hard drives can be a real challenge.

1 Nov, 2007

Publisher's Letter

Now for the next 20 years

1 Nov, 2007

Mailbag

Letters and emails should contain complete name, address and daytime phone number. Letters to the Editor are submitted on the condition that Silicon Chip Publications Pty Ltd may edit and has the right to reproduce in electronic form and communicate these letters. This also applies to submissions to "Ask SILICON CHIP" and "Circuit Notebook".

1 Nov, 2007

Circuit NoteBook

Interesting circuit ideas which we have checked but not built and tested. Contributions from readers are welcome and will be paid for at standard rates.

1 Nov, 2007

Ask Silicon Chip

Got a technical problem? Can't understand a piece of jargon or some technical principle? Drop us a line and we?ll answer your question. Write to: Ask Silicon Chip, PO Box 139, Collaroy Beach, NSW 2097 or send an email to silchip@siliconchip.com.au

Issue 229   View the articles in this issue >>
Mailbag Simple Data-Logging Weather Station; Pt.2
Circuit Notebook AM Loop Antenna & Amplifier

31 Oct, 2007

Ask Silicon Chip

Got a technical problem? Can't understand a piece of jargon or some technical principle? Drop us a line and we'll answer your question. Write to: Ask Silicon Chip, PO Box 139, Collaroy Beach, NSW 2097 or send an email to silchip@siliconchip.com.au

29 Oct, 2007

Mailbag

Letters and emails should contain complete name, address and daytime phone number. Letters to the Editor are submitted on the condition that Silicon Chip Publications Pty Ltd may edit and has the right to reproduce in electronic form and communicate these letters. This also applies to submissions to "Ask SILICON CHIP" and "Circuit Notebook".

27 Oct, 2007

Simple Data-Logging Weather Station; Pt.2

Last month we introduced our new Rain and Temperature-Measuring Weather Station, with all the electronics. This month we get into the nitty-gritty of building it - all the mechanical detail and then actual contstruction.

24 Oct, 2007

Circuit Notebook

20 Oct, 2007

DVD Players: How Good Are They For HiFi Audio?

CD players are now relatively expensive so are there any compromises in using a cheap DVD player instead? We collected a bunch of players and put them through their paces to find out.

18 Oct, 2007

Vintage Radio

During the 1930s, radio broadcasts served as an important propaganda tool. It was also the era of The Great Depression, so not many people could afford high-priced radios. Nazi Germany's answer was a series of simple, low-cost "austerity" models.

15 Oct, 2007

Serviceman's Log

Ever tried to fix a rear projection TV set in a carpark? That's precisely the silly situation I got myself into recently, all driven by a terrible need to earn money.

10 Oct, 2007

PICProbe: A versatile Logic Probe

A versatile PIC-based logic probe that fits inside a Biro case!

9 Oct, 2007

Rolling Code Security System; Pt 1

Ideal for keyless entry for doors in cars, homes & industry, this Keyless Entry System features a rolling code to ensure high security. It also has two door-strike outputs, an alarm system & provision to use up to 16 separate keyfob transmitters with the same receiver.

7 Oct, 2007

Oscar: Electronic Noughts & Crosses Game

Noughts and crosses may rate quite poorly amongst young gamers of today but in the late 1960s, a machine, more often called an electronic brain than a computer, playing noughts and crosses against a human opponent, was quite a sensation.

1 Oct, 2007

Publisher's Letter

Cheap DVD players are just that: cheap!

Issue 228   View the articles in this issue >>
The Art Of Long-Distance WiFi Stereo Class-A Amplifier; Pt.5
Circuit Notebook Serviceman's Log

30 Sep, 2007

The Art Of Long-Distance WiFi

This article will show you how to use wireless networking (WiFi) gear to make a network link of 10km or more.

30 Sep, 2007

Stereo Class-A Amplifier; Pt.5

In this article, we show you how to build a high-performance 20W Class-A Stereo Amplifier using the modules described over the last few months. The unit will be available as a complete kit from Altronics and the assembly is straightforward.

29 Sep, 2007

Circuit Notebook

Interesting circuit ideas which we have checked but not built and tested. Contributions from readers are welcome and will be paid for at standard rates.

29 Sep, 2007

Serviceman's Log

Remote-controlled security blinds are not normally my scene but I'll give anything a go once. So was this a case of the blind leading the blind or was it simply blind man's bluff?

20 Sep, 2007

How To Cut Your Greenhouse Emissions; Pt.3

"If Australians switched to clean, renewable energy (Green Power) today, Australia's total greenhouse pollution would be cut by 30%." - World Wildlife Fund

20 Sep, 2007

A Fast Charger For NiMH & Nicad Batteries

This is a truly versatile charger. It can charge up to 15 identical NiMH or Nicad cells. You can build it to suit any size cells or cell capacity and you can set the charge rate. It can fast charge, trickle charge and has safeguards, including temperature sensing, to prevent overcharging.

13 Sep, 2007

Simple Data-Logging Weather Station, Pt. 1

It's cheap and simple to build, operates completely unattended and will run for years on a set of AA batteries.

11 Sep, 2007

Vintage Radio

How many of us have had the opportunity to see working examples of equipment dating from the end of the 19th century? There was a lot of impressive equipment on display during the HRSA's recent 25th anniversary celebrations in Melbourne.

9 Sep, 2007

Ask Silicon Chip

Got a technical problem? Can't understand a piece of jargon or some technical principle? Drop us a line and we'll answer your question. Write to: Ask Silicon Chip, PO Box 139, Collaroy Beach, NSW 2097 or send an email to silchip@siliconchip.com.au

7 Sep, 2007

Review: New Wireless PA System From Altronics

Forget the hassel of running cables to your PA speakers. This new PA systemfrom Altronics is "wire less"

5 Sep, 2007

Mailbag

Letters and emails should contain complete name, address and daytime phone number. Letters to the Editor are submitted on the condition that Silicon Chip Publications Pty Ltd may edit and has the right to reproduce in electronic form and communicate these letters. This also applies to submissions to "Ask SILICON CHIP" and "Circuit Notebook".

3 Sep, 2007

Spectacular Bike Wheel POV Display

This project uses POV to produce a spectacular glowing display on a rotating pushbike wheel as you ride along. So what is POV? It stands for Persistence Of Vision. It's a term that's applied to devices that rely on the human eye's tendency to "see" an image for a short time after it has disappeared.

1 Sep, 2007

Publisher's Letter

Global warming is causing panic among politicians and the bureaucracy

Issue 227   View the articles in this issue >>
Mailbag Serviceman's Log
Vintage Radio Build A 6-Digit Nixie Clock, Pt.2

28 Aug, 2007

Ask Silicon Chip

Got a technical problem? Can't understand a piece of jargon or some technical principle? Drop us a line and we'll answer your question. Write to: Ask Silicon Chip, PO Box 139, Collaroy Beach, NSW 2097 or send an email to silchip@siliconchip.com.au

26 Aug, 2007

Mailbag

Letters and emails should contain complete name, address and daytime phone number. Letters to the Editor are submitted on the condition that Silicon Chip Publications Pty Ltd may edit and has the right to reproduce in electronic form and communicate these letters. This also applies to submissions to "Ask SILICON CHIP" and "Circuit Notebook".

24 Aug, 2007

Serviceman's Log

Getting down on my hands and knees to service a dishwasher is not much fun but this was one those occasions when I had no choice. I'd much rather service TV sets any day, so let's start off with one of those.

23 Aug, 2007

Vintage Radio

First introduced back in the 1930s, car radios have been popular with motorists ever since. Here's a brief look at how they evolved, along with the restoration details for an AWA 948C dual-polarity car radio.

22 Aug, 2007

Build A 6-Digit Nixie Clock, Pt.2

Last month, we gave some of the history of Nixie tubes and described the design of the NX14 clock and its circuit. This month, we give the assembly details and describe the optional blue LED up-lighting which we think that most constructors will definitely want, together with the attractive see-through Perspex case.

20 Aug, 2007

Circuit NoteBook

Interesting circuit ideas which we have checked but not built and tested. Contributions from readers are welcome and will be paid for at standard rates.

18 Aug, 2007

Subwoofer Controller

Adding a subwoofer to your home theatre or hifi system is the easiest way to extend the bass response. A relatively small speaker system driven by a big amplifier can give heaps of bass while not taking up a lot of space. This new Subwoofer Controller has all the features you could want, including low and high pass filters, parametric equaliser and auto-turn on.

13 Aug, 2007

Adaptive Turbo Timer

If your car's turbocharger has just been running, it is vital to allow the engine to idle for a few minutes before switching off. This Adaptive Turbo Timer will do the job automatically. It only operates when necessary and sets the idle time according to how hard you've driving.

10 Aug, 2007

20W Class-A Amplifier Module; Pt.3

In Pt.4 this month, we present a high-performance Stereo Preamplifier & Remote Volume Control module. It's a low-noise, low-distortion design specifically engineered for the Class-A amplifier but which can also be used with other stereo power amplifiers.

7 Aug, 2007

The LM4562: a new super-low-distortion opamp

A new super-low distortion op amp.

6 Aug, 2007

ezi-TRAK GPS/GSM-based Vehicle Tracking System

The press release looked intriguing, telling of an Aussie tracking device helping to foil a car-jacking in Nigeria (see report at right). But (being the inquisitive creatures we are) we wanted to know the story behind the story. Just what is this "EziTRAK" and what makes it so special? Ross Tester explains.

3 Aug, 2007

How To Cut Your Greenhouse Emissions; Pt.2

More suprises - how solar water heating can be environmentally worse than gas heating, for example.

1 Aug, 2007

Publisher's Letter

Technology is fighting the war against terrorists

Issue 226   View the articles in this issue >>
Circuit Notebook Product Showcase
Vintage Radio Serviceman's Log

31 Jul, 2007

Circuit Notebook

Interesting circuit ideas which we have checked but not built and tested. Contributions from readers are welcome and will be paid for at standard rates.

31 Jul, 2007

Product Showcase

20 Jul, 2007

Vintage Radio

The Weston Model 660 Radio Set Analyser

19 Jul, 2007

Serviceman's Log

Giving quotes to repair equipment such as a TV sets is not that easy. As often as not, providing an accurate quote means spending a great deal of time tracking down the fault, by which time the job has really been done. And if the customer then rejects the quote, you don't get a cent for your time.

16 Jul, 2007

Tank Water Level Indicator

A little over five years ago, before water became a "cause celebre", we published a design for a simple tank water level indicator. Now, with thousands of home water tanks being installed every year (and prompted by many requests for such a project), we thought it time to resurrect the idea, albeit with a couple of tweaks.

14 Jul, 2007

20W Class-A Amplifier Module; Pt.3

Designed for use in our new Class-A Stereo Amplifier, this Speaker Protection & Muting Module is really a universal unit. It can be used with other SILICON CHIP amplifier modules and commercial stereo amplifiers and protects the loudspeakers in the event of a catastrophic amplifier failure. A second function of the unit is to mute the loudspeakers at switch-on & switch-off to prevent thumps.

13 Jul, 2007

Mailbag

12 Jul, 2007

A PID Temperature Controller

What's a PID controller? PID stands for "proportional integral differential" and relates to a process which seeks to continuously correct the error between a measured variable and a desired setting by calculating an appropriate correction process. In practice, it can largely avoid the large overshoots and undershoots that occur in simple temerature control systems.

10 Jul, 2007

PICAXE Plays Music

One of the most popular uses of PICAXE chips is in sound orientated projects. Both the new PICAXE-14M and PICAXE-28X1 support the 08M 'play' and 'tune' commands, which allow the PICAXE chips to play mobile phone ring-tones directly via a piezo sounder.

9 Jul, 2007

Build A 6-Digit Nixie Clock, Pt. 1

We have been wanting to produce this Nixie Clock project for a long time and now it has finally come to fruition. It has the warm, fascinating glow of Nixie tubes with their hypnotic counting action, mixed with a cool blue glow from a high-brightness LED from underneath each tube. It makes an eye-catching display, both during the day and at night.

8 Jul, 2007

Review: Watchguard Pro Video Security System

It seems these days it's not enough to protect your property - if the b*****s want it enough, they'll go to extraordinary lengths to steal it. What you need is the evidence to help catch them - and this could just do it for you!

6 Jul, 2007

New Superbright LED: Will It Replace 50W Halogens?

Elsewhere in this issue (and indeed previous issues of SILICON CHIP) we rail against the huge energy wastage of all-too-popular halogen downlights). Perhaps their days are numbered...

4 Jul, 2007

How To Cut Your Greenhouse Emissions; Pt. 1

...and save real $$$$ into the bargain!

You may not be aware of it but without going to any real expense, you can make major energy savings at home and in the office. Nor do you have to make any compromises in day-to-day comfort. All you have to do is be aware of what all your appliances actually consume and then take appropriate action.

2 Jul, 2007

Making Panels For Projects

While it's easy enough to source all of the bits 'n' pieces for the projects described in SILICON CHIP, labelling for the front/rear panels can be a real problem. Sure, a neat printing job with a permanent marker can be functional but it doesn't look very professional. Besides, what if you want to add graphics?

<<< Page: 6 7 8 9 10 11 12  [ 13 ]  14 15 >>>
Privacy Policy  |  Advertise  |  Contact Us

Copyright © 1996-2018 Silicon Chip Publications Pty Ltd All Rights Reserved