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Contents Vol.27, No.12; December 2014 SILICON CHIP www.siliconchip.com.au A WiFi Server For $5 – Page 30. Features 16 The Amazing ARGUS-IS Surveillance System Big Brother is watching you! This remarkable system can find, monitor & track multiple targets over a wide geographic area – by Dr David Maddison 24 Movies On A Stick There’s plenty on free-to-air TV but not much that’s worth watching. Fortunately, there’s the Internet & USB memory sticks – by Barrie Smith 46 Review: Tecsun PL-880 PLL Synthesised DSP Receiver This “high-sensitivity world band radio” suits everyone from the occasional eavesdropper to the dedicated shortwave listener – by Ross Tester 61 Review: The WENS 540 Debug Meter If you only carry around one test instrument in the field, then this is for you. It combines a scope, DMM, data logger, 8-channel logic analyser, and pattern generator into one hand-held, battery-powered instrument – by Nicholas Vinen 96 Review: Icom’s New IP 2-Way Radios They’re small, rugged & waterproof, there are no licence fees and they all work over your WiFi network – by Ross Tester Pro jects To Build High-Energy Multi-Spark CDI For Performance Cars – Page 36. 30 A WiFi Server For $5 This is something that you will find hard to believe . . . a WiFi module with everything you need to add wireless Internet connectivity to your next Micromite or microcontroller project. And it costs just $5 – by Geoff Graham 36 High-Energy Multi-Spark CDI For Performance Cars Completely new unit provides a high-energy, multi-spark discharge each time a spark plug is fired to ensure complete mixture combustion and is especially effective with engines that run at high RPM – by John Clarke 70 A TDR Dongle For Cable Fault-Finding Want to track down faults in coaxial and other cables using time-domain reflectometry or “TDR”? This low-cost TDR Dongle will do the job – by Jim Rowe 82 Currawong 2 x 10W Stereo Valve Amplifier, Pt.2 Second article describes full PCB assembly and gives the timber plinth and chassis wiring details – by Nicholas Vinen Special Columns TDR Dongle For Cable FaultFinding – Page 70. 48 Circuit Notebook (1) MEN Hazard Warning Alarm; (2) Forward/Reverse Drive For DVD Brushless DC Motors; (3) Supressed Zero Meter Using A Zener Diode 64 Serviceman’s Log We’re genetically programmed to fix things – by Dave Thompson 100 Vintage Radio Those magnificent Kriesler Multisonic stereograms – by Lindsay George Departments   2 Publisher’s Letter   4 Mailbag 29 Subscriptions siliconchip.com.au 50 Online Shop 99 106 111 112 Product Showcase Ask Silicon Chip Market Centre Advertising Index Building The Currawong 2 x 10W Stereo Valve Amplifier – Page 82. December 2014  1