Email Address:
Password:

Lost your password?

This is the legacy website; please use the new website.
Issue 245   View the articles in this issue >>
Vintage Radio Multi-Purpose Car Scrolling Display, Pt.3
Programmable Time Delay Flash Trigger 10A Universal Motor Speed Controller, Mk.2

24 Feb, 2009

Vintage Radio

This month, we take a look at an interesting museum that's dedicated to the display of ex'Australian Army radio equipment. It's not often that you get the chance to see a collection of military communications gear.

22 Feb, 2009

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.

20 Feb, 2009

Multi-Purpose Car Scrolling Display, Pt.3

In Pt.3 this month, we describe how the Multi-Purpose Car Scrolling Display is connected to the car and used. It's driven using a simple command-line program.

18 Feb, 2009

Programmable Time Delay Flash Trigger

Want to try your hand at 'stop motion' photography, where dynamic events such as a match bursting into flame, a drop splashing into a container of liquid or a projectile passing through a light globe, are captured at a crucial moment? Here's a project designed specifically for this kind of work. It lets you trigger your electronic flash at the precise moment for a great picture.

16 Feb, 2009

Serviceman's Log

I used to get a steady stream of CRT TV sets into the workshop but that stream is now a mere trickle. Most people can not be bothered to get a CRT set fixed and, in fact, perfectly good sets are now being discarded in ever increasing numbers to make way for plasmas and LCDs.

13 Feb, 2009

10A Universal Motor Speed Controller, Mk.2

This latest speed controller can be used with power tools and appliances rated up to 10A. It is suitable for use with brush-type universal motors such as those in small lathes, electric drills, grass trimmers, circular saws, routers, nibblers and jigsaws.

11 Feb, 2009

Tempmaster Electronic Thermostat Mk.2

Want to convert an old chest-type freezer into an energy-efficient fridge? Or convert a spare standard fridge into an excellent wine cooler? These are just two of the jobs this low-cost and easy-to-build electronic thermostat has been designed to do. It can also be used to control 12V fridges or freezers, as well as heaters in hatcheries and fish tanks. It controls the fridge/freezer or heater directly via their power cables, so there's no need to modify their internal wiring.

9 Feb, 2009

2.4GHz DSS Radio Control Systems

There is a revolution sweeping across the R/C model scene which will bring great improvements in reliability. In a little over two years, 2.4GHz DSS radio control systems have begun to dominate. It is now common to see over 50% of all transmitters in the transmitter pound sporting those little black antennas.

6 Feb, 2009

Review: LeCroy Waverunner 104Mxi Digital Scope

LeCroy's WaveRunner 104Mxi is a 4-channel digital oscilloscope which operates under Windows XP. You can configure and run the scope using either a USB mouse or via the touch screen. In fact, most of the time you can completely ignore the front panel controls and just use the mouse.

5 Feb, 2009

Publisher's Letter

5 Feb, 2009

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".

5 Feb, 2009

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 silicon@siliconchip.com.au

4 Feb, 2009

Digital Radio Is Coming, Pt.1

Digital radio broadcasts will finally start in Adelaide, Brisbane, Melbourne, Perth and Sydney on 1st May with 71 radio stations (ABC, SBS & commercial) on ten DAB+ transmitters. This is the first of a series of articles giving you the details on this complex and completely new radio broadcast medium.

Issue 244   View the articles in this issue >>
433MHz UHF Remote Switch Dual Booting With Two Hard Disk Drives
Remote Mains Relay Mk.2 Vintage Radio

24 Jan, 2009

433MHz UHF Remote Switch

Ideal for remote control of practically anything you like and with a range of more than 200m, this wireless transmitter and receiver pair use pre-built UHF modules that make it easy to construct and use.

21 Jan, 2009

Dual Booting With Two Hard Disk Drives

Dual-boot set-up tutorials usually assume that you're installing the two operating systems into separate partitions on the same hard disk drive (HDD). But what if you want to use two hard drives - one for each OS - and keep both bootloaders intact?

20 Jan, 2009

Remote Mains Relay Mk.2

The PC board used for the USB Sensing Power Switch can also be used to build a remote mains relay. This can be used for switching mains power to lights or appliances using a remote switch (or relay) linked by low-voltage wiring. It can also be used for controlling security lights from the relay contacts on a PIR sensor.

17 Jan, 2009

Vintage Radio

Manufactured in the US in the early 1950s, the Philco 52-545 is a 5-valve broadcast-band superhet. It's a transformerless AC/DC that runs directly off 115V AC and so a care must be exercised when working on it.

15 Jan, 2009

Review: Navman Platinum S300t GPS Unit

SatNav (GPS) units were one of the "hot" items at Christmas time. Most were the low-cost, low-featured variety. But we wanted to see what was offered in the top-of-the-range models and Navman came to the party with their just-released "Platinum" S300t. About the only thing it doesn't have is the kitchen sink. Oh, did I miss that?

13 Jan, 2009

USB-Sensing Mains Power Switch

Do you have to manually switch your PC's peripherals on (and later off again) each time you boot your PC? If so, this project will make life a lot easier. It monitors your PC's USB port and automatically turns all that other gear on and off as required.

8 Jan, 2009

Honda's 3.5 Litre V6 With Cylinder Deactivation

No doubt most readers will have seen the TV commercials for the current model Honda V6 Accord. The commercial shows a graphic demonstration of the engine's three modes whereby it can run on three, four or six cylinders. But while groups of musicians playing kettledrums might be spectacular, it does not give a clue as to how it's done.

7 Jan, 2009

AM Broadcast Band Portable Loop Antenna

Lamenting the passing of local AM radio? Desert island or outback mining camp based? Unable to clamber up on the roof for a long wire aerial anymore? Here's a simple medium wave tunable loop that, even indoors, will bring signals out of thin air!

5 Jan, 2009

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.

4 Jan, 2009

Serviceman's Log

There are some jobs that I would rather forget about. But for the sake of my soul, one has to learn to be humble by reminding oneself of one's failings. And if I don't do it, there?s always an OAP who will.

3 Jan, 2009

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".

2 Jan, 2009

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 silicon@siliconchip.com.au

1 Jan, 2009

Publisher's Letter

Issue 243   View the articles in this issue >>
Versatile Car Scrolling Display, Part 1 Vintage Radio
Simple Voltage Switch For Car Sensors Digital Cinema: Digitising The Movies

20 Dec, 2008

Versatile Car Scrolling Display, Part 1

This project started out as a digital dashboard display but has grown and can be used in any measurement or data logging application where you have 9-12V DC available. It can monitor up to six signals and display up to 10 computed values in a scrolling or static readout on a 7 x 15 dot matrix LED display.

18 Dec, 2008

Vintage Radio

British manufacturers built some superb high-end audio amplifiers during the 1950s and 1960s and the Leak TL/12 was one of these. It's a 5-valve mono amplifier with some interesting design features and is reasonably easy to service.

17 Dec, 2008

Simple Voltage Switch For Car Sensors

This Simple Voltage Switch can be used anywhere you want a relay to switch when a voltage reaches a preset level. It has lots of applications in cars but can be used in any application where you have 12V DC available. Having switched the relay on, it will then switch if off as the voltage being monitored drops below the preset level.

16 Dec, 2008

Digital Cinema: Digitising The Movies

There is upheaval in the movie industry. More feature films are being shot with digital cameras and successfully transferred to 35mm film release prints with advanced technology. Surprisingly, film is still hanging in as a capture medium, due mainly to the pressure from cinematographers who claim that everyone wants that 'film look', while few set out to achieve that 'video look' in the cinema. Coming up fast on the inside is the 'digital look', as increasing numbers of cinemas around the world begin to install digital projection into their bio-boxes. Barrie Smith takes a look into the popcorn and choc-top world of the digital cinema revolution.

15 Dec, 2008

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 silicon@siliconchip.com.au

11 Dec, 2008

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.

9 Dec, 2008

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".

8 Dec, 2008

Build A Brownout Protector

What is a "brownout"? This rather graphically describes what happens to your lights when the AC mains voltage drops dramatically - they get very dim. But apart from dim lights, brownouts are a fatal hazard to induction motors, as used in air conditioners, pumps, dishwashers and a lot of other appliances.

7 Dec, 2008

Publishers Letter

5 Dec, 2008

Test The Salt Content Of Your Swimming Pool

Do you have a swimming pool with a salt-water chlorinator? Then you will know that you have to periodically add salt to the water to make sure that the chlorination process works properly. So how do you measure salt content in your swimming pool?

3 Dec, 2008

Servicemans Log

The increasing popularity of home-theatre systems has had one good effect from my point of view: a steady flow of home-theatre amplifiers to fix. Now that VCRs are all but gone, I need all the extra work I can get.

1 Dec, 2008

The Chevrolet Volt Electric Car

An "electric" concept car due here in 2012: the Star of the Sydney International Motor Show?

Issue 242   View the articles in this issue >>
IrDA Interface Board For The DSP Musicolour 50 Years Of The Integrated Circuit
USB Clock With LCD Readout, Pt.2 Review: Jaycar's Sun-In-A-Box Solar Lighting Kit

30 Nov, 2008

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 Nov, 2008

IrDA Interface Board For The DSP Musicolour

Most PCs and laptops now offer an IrDA interface to enable communication without any physical connection. Now you can have the same facility for the DSP Musicolour - or for virtually any other microcontroller project.

27 Nov, 2008

50 Years Of The Integrated Circuit

It?s hard to imagine a world without the integrated circuit, just as it is hard to imagine a manufactured product without one! But the IC has only been with us for half a century, being first demonstrated on September 12, 1958.

25 Nov, 2008

USB Clock With LCD Readout, Pt.2

Last month, we detailed the circuit of the USB Clock and showed you how to build it. This month, we detail the software installation and describe how it is used. We also describe how to synchronise your PC to an internet time server and how to synchronise the USB Clock to the PC each time the PC boots up.

23 Nov, 2008

Review: Jaycar's Sun-In-A-Box Solar Lighting Kit

Going bush? Living on a desert island/houseboat/mountain top? Sick of energy bills? Daily supply charges driving you crazy? Want to run extra wiring for decent shed lights but find that's illegal? Even considering DIY by running a backyard generator instead? Read on - "CIGnificant" solar help may be at hand!

21 Nov, 2008

How Oxygen Sensors Work

The oxygen sensor is an important component in your car?s engine management system. It monitors the oxygen content in the car?s exhaust, to indicate whether the mixture is too lean or too rich. Here?s a quick rundown on how the two basic types work.

19 Nov, 2008

Wideband Air-Fuel Mixture Display Unit

This Wideband Oxygen Sensor Display can show your car's air-fuel ratio as you drive. It's designed to monitor a wideband oxygen sensor and its associated wideband controller but could be used to monitor a narrowband oxygen sensor instead. Alternatively, it can be used for monitoring other types of engine sensors.

15 Nov, 2008

12V Speed Controller/Lamp Dimmer

This handy circuit can be used as a speed controller for a 12V motor rated up to 5A (continuous) or as a dimmer for a 12V halogen or standard incandescent lamp rated up to 50W. It varies the power to the load (motor or lamp) using pulse width modulation (PWM) at a pulse frequency of around 220Hz.

13 Nov, 2008

Playing With The AirNav RadarBox

Ever wanted to be an air traffic controller? This will let you experience it all - from the comfort of your PC!

11 Nov, 2008

Vintage Radio

Ever wondered about those mysterious antenna coils used in vintage radio receivers, or about those old-style loop antennas? This article unravels some of the mysteries.

7 Nov, 2008

Serviceman's Log

Jim Hacker in the British TV comedy series "Yes Minister" faced many moral dilemmas in his never-ending battle with the wily Sir Humphrey Appleby. I recently faced a moral dilemma of my own when I wrongly diagnosed a fault in a customer's LCD TV.

5 Nov, 2008

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 Nov, 2008

Publisher's Letter

1 Nov, 2008

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 241   View the articles in this issue >>
Cent-a-meter Owl: Watching Your Power Consumption USB Clock With LCD Readout, Pt.1
Exposing PC Boards In A Modified Microwave Oven Publisher's Letter

27 Oct, 2008

USB Clock With LCD Readout, Pt.1

This LCD USB Clock connects to your PC's USB port. It synchronises its time with your PC - and ultimately an internet time server - when your PC is on to maintain accurate time-keeping. It can also operate on its own using battery back-up and has user-selectable display modes.

25 Oct, 2008

Exposing PC Boards In A Modified Microwave Oven

I decided to build the UV exposure box for photo-sensitive PC boards, as published in the November 2007 SILICON CHIP. The first thought I had was to use the timer module in an old microwave oven, instead of building the timer design used in the project. Then I thought: "Why not use the whole oven?"

25 Oct, 2008

Publisher's Letter

23 Oct, 2008

Versatile Special Function Timer

This automatic timer has a wide range of applications whereby a timing cycle is initiated in response to a trigger signal. There are quite a few uses for it in a car or you could use it on a model railway layout, in a home security system or whatever.

21 Oct, 2008

Vintage Radio

First released in 1954, the AWA Radiola 653P was a 6-valve portable receiver that could operate from both batteries and mains power. It's a good performer that's easy to restore and get going.

19 Oct, 2008

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.

17 Oct, 2008

Digital RF Level & Power Meter

Need to measure small signals at radio frequencies? Here is a low-cost digital level and power meter which will allow you to measure RF signals from below 50kHz to above 500MHz. As well as indicating the signal level in volts and dBV, it also shows the corresponding power level (into 50 ohms) in both milliwatts and dBm.

15 Oct, 2008

Picaxe-08M 433MHz Data Transceiver

Telemetry (from the Greek tele = remote and metron = measure) refers to the remote measurement and reporting of information, typically using wireless links to carry the data. Such technology is well established in climatic monitoring (especially temperature), water management, motor sport, security, medicine, defence and even space - Martian probe style.

11 Oct, 2008

Serviceman's Log

While sales of large-screen plasma and LCD TV sets are booming, people are still confused as to the choice: plasma or LCD? This situation has recently become a little clouded as "Mura" faults become evident on some LCD panels. The real kicker is that Mura faults may not be evident when you buy your set.

11 Oct, 2008

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

9 Oct, 2008

Railpower Model Train Controller, Pt.2

Last month we presented the circuit, specifications and parts list for our new high-performance Railpower IV model train controller. Now it's time for the construction details - and we show you how to set it up for best performance.

7 Oct, 2008

CleverScope CS328A USB Dual-Channel 100MHz Scope

Hooked up to a desktop or laptop computer, this USB oscilloscope and its supplied PC software provide a large range of functions, including data logging. With the optional signal generator you can also test audio equipment, measure THD and do frequency sweeps.

5 Oct, 2008

Mailbag

<<< 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