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The Magic Of Water Desalination
01 July 2009
What do Perth, Saudi Arabia and cruise ships have in common? They all rely on desalination for fresh water. And the Gold Coast, Sydney and Adelaide are about to join the club!
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Tech Support: The View From The Other Side
24 June 2009
In the first part of this story in May SILICON CHIP Barrie Smith tipped us into the maelstrom of the funny yarns about Tech Support. Now he gets serious and investigates how the major companies handle the floods of enquiries and queries that rain upon enterprises brave enough to market their products... and daring enough to back them up with help and comfort for the buying public.
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Hand-Held Digital Audio Oscillator
22 June 2009
Do you need to test audio equipment, including amplifiers and speakers, in the field and in the workshop? If so, you could use this compact and inexpensive digital audio oscillator. It can produce sine, square, triangle and sawtooth waveforms in the frequency range from 10Hz-30kHz and features three output ranges: 20mV, 200mV & 1V.
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Mal's Electric Vehicle Conversion
21 June 2009
Malcolm Faed has produced the first electric vehicle conversion using an industrial 3-phase induction motor controlled by a variable frequency, variable voltage converter. As far as we know, it is the first such road-registered DIY conversion in Australia and it is probably one of the first in the world.
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PICAXE Humidity Measuring Using The HopeRF HH10D
19 June 2009
Recent SILICON CHIP articles on HopeRF 433MHz data transceivers have drawn our attention to other monitoring modules made by this Chinese firm. Amongst their offerings is a well-priced and calibrated humidity sensor, the HH10D. This has shown itself capable of extremely simple interfacing to even the humblest PICAXE, although factory calibration values first need reading via an I2C-level PICAXE such as the 18X.
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Voice Me: A Voice-Activated Remote Control
17 June 2009
VoiceMe is a voice-activated remote control. It can be used to control up to ten functions on your TV, DVD player, Home Theatre system or whatever and it can have up to four separate users. If you are one of those who often loses remote controls, it could be an attractive option.
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Digital Radio Is Coming, Pt.4
15 June 2009
In this final instalment we discuss the signal formats and give a comparison of DAB+ and DRM. Also included is a brief discussion of antennas suitable for DAB+ reception.
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High Current, High Voltage Battery Capacity Meter
11 June 2009
Ideal for solar power battery monitoring but also perfect for a wide variety of rechargeable battery applications, this smart battery meter monitors the charge and discharge of lead-acid, Nicad and NiMH batteries with an operating voltage range of 9-60V and currents up to 80A. It has settable overload and under-voltage protection and it can be connected to a PC for logging of battery condition.
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GPS Driver Module For The 6-Digit Clock, Pt 2
09 June 2009
Based on the GlobalSat EM-408 GPS module, this compact GPS receiver/driver board mates with the 6-digit display described in Pt.1 to form a self-contained GPS clock. It can also be housed separately and used to provide NMEA 0183 time and date information to a PC, via a serial port.
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Build A Beam-Break Flash Trigger
05 June 2009
Here's an easy-to-build accessory for the Time Delay Photoflash Trigger described in our February 2009 issue. It triggers the delay unit and your photoflash in response to an object interrupting an invisible beam of infrared (IR) light. Alternatively, it can be used on its own to directly trigger a photoflash.
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View all feature articles 
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03 July 2009 Mailbag 02 July 2009 Ask Silicon Chip 20 June 2009 Servicemans Log 14 June 2009 Salvage It 13 June 2009 Vintage Radio 11 June 2009 Mailbag 07 June 2009 Ask Silicon Chip 03 June 2009 Publishers Letter 20 May 2009 Servicemans Log 19 May 2009 Vintage Radio 13 May 2009 Mailbag 11 May 2009 Ask Silicon Chip 01 May 2009 Publishers Letter 20 April 2009 Vintage Radio 10 April 2009 Circuit Notebook 06 April 2009 Ask Silicon Chip 04 April 2009 Servicemans Log 01 April 2009 Publishers Letter 24 March 2009 Vintage Radio 20 March 2009 Mailbag 18 March 2009 Serviceman's Log 12 March 2009 Ask Silicon Chip 02 March 2009 Publisher's Letter 24 February 2009 Vintage Radio 16 February 2009 Serviceman's Log 05 February 2009 Publisher's Letter Mailbag Ask Silicon Chip 17 January 2009 Vintage Radio 04 January 2009 Serviceman's Log
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