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Contents Vol.23, No.4; April 2010 SILICON CHIP www.siliconchip.com.au Features 12 3D TV Is Here At Last! After a lot of false starts, top-quality 3D TV is finally here at an affordable cost, with sets about to go on sale. Here’s a look at the technology that makes it work – by Kevin Poulter Good Quality 3D TV Is Here At Last – Page 12. 20 FAQs On The Web Server In A Box (WIB) The WIB has been incredibly popular. Here’s a collection of FAQs on building it and setting it up, plus a look at some of the most common feature requests – by Mauro Grassi 75 Review: PICOTEST M3510A 6½-Digit Multimeter It’s fast, accurate, affordable and features 4-wire resistance measurement, thermocouple support and a USB interface – by Nicholas Vinen Capacitor Leakage Adaptor For DMMs – Page 28. Pro jects To Build 28 Capacitor Leakage Adaptor For DMMs This low-cost adaptor unit has seven different test voltages ranging from 1V to 100V and can measure leakage currents down to 100nA. A DMM provides the display readout – by Jim Rowe 58 A 1000:1 EHT Probe Do you need to measure EHT voltages when servicing electronic gear? This EHT probe will let you do it safely. It plugs into your DMM and can be built for less than $40 – by Jim Rowe 66 Arduino-Compatible I/O Controller Want to control equipment or read sensors using commands from your PC? This I/O controller accepts a versatile range of inputs and has eight relay outputs – by Greg Radion & Ross Tester 82 Digital Audio Signal Generator, Pt.2 Second article describes how to assemble the PC boards, mount them in a case and check that they are working correctly – by Nicholas Vinen Special Columns 38 Circuit Notebook (1) Adding A Restart To The Modified Flexitimer; (2) Simple Panoramic Adaptor For A Communications Receiver; (3) Black-out Alarm For A LifeSupport Machine; (4) Constant Current Source LED Sorter; (5) Cancelling Op Amp Input Bias Current An EHT Probe For High-Voltage Measurements – Page 58. 44 Serviceman’s Log Those lazy, hazy days of air-conditioning – by the Serviceman 92 Vintage Radio The spark era: the beginning of radio – by Rodney Champness Departments   2   3 57 63 Publisher’s Letter Mailbag Product Showcase Order Form siliconchip.com.au 98 Ask Silicon Chip 101 Notes & Errata 102 Market Centre Arduino-Compatible I/O Controller – Page 66. 66. April 2010  1