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Contents Vol.29, No.10; October 2016 SILICON CHIP www.siliconchip.com.au Features 16 China’s Gigantic Telescope: Scanning Deepest Space The world’s largest single-dish radio telescope has begun operation in Guizhou Province, China using a receiver built by the CSIRO – by Ross Tester 22 Implantable Medical Devices More and more implantable electronic medical devices are being developed to correct deficiencies due to disease, accident or simply wear’n’tear. Here’s a brief run-down on the latest developments – by Dr David Maddison An Audio Lure For Lovelorn Male Mozzies – Page 36. 32 Low-Cost Asian Electronic Modules, Pt.1 Low-cost Asian electronic modules have now become just standard parts! This month, we look at the DS3231 real time clock (RTC) module – by Jim Rowe Pro jects To Build 36 Lure & Liquidate Lovelorn Zika Virus Mozzies The Zika virus could be on its way. This clever lure helps stop Zika virus mozzies before they bite! – by John Clarke 44 A New Transformer For The Currawong Valve Amplifier The Currawong valve amplifier published in November & December 2014 & January 2015 had a complicated power supply with two transformers. Now there’s a 160VA transformer that will do the job all by itself – by Leo Simpson 57 Touchscreen Appliance Energy Meter, Pt.3 Final article gives the calibration procedure plus more information on using the unit and the use of CFUNCTIONS – by Jim Rowe & Nicholas Vinen 62 Two Micropower LED Flasher Modules Two Micropower LED Flasher Modules – Page 62. The LM3909 LED-flashing IC is no longer available. These two modules provide similar functions to the LM3909 and include daylight detection – by John Clarke 72 Voltage/Current Reference With Touchscreen, Pt.1 New design lets you produce any voltage from 0-47V with 0.1% or better accuracy, with the convenience of a touch-screen interface. It can also act as a precision current source or sink from 1mA to several amps – by Nicholas Vinen 80 Micromite Plus Explore 100 Module, Pt.2 Pt.2 gives the assembly details, describes the setting-up procedure and shows you how to configure the unit as a self-contained computer – by Geoff Graham Special Columns 66 Serviceman’s Log How I got trapped inside my MG – by Dave Thompson Touchscreen-Controlled Voltage & Current Reference, Pt.1 – Page 72. 88 Circuit Notebook (1) Dual-Switch Relay Control Logic Using LEDs; (2) Improvement To Ducted Home Vacuum System; (3) Micromite Mk2 Breadboard Adaptor; (4) Decoding Samsung & NEC Remote Codes With BASCOM; (5) Clap-On/Clap-Off Switch 92 Vintage Radio The valve mantel’s last hurrah: Astor’s DLP 2-valve receiver – by Ian Batty Departments   2 Publisher’s Letter   98   4 Mailbag 103 siliconchip.com.au 14 SC Online Shop 104 96 Product Showcase 104 Ask Silicon Chip Market Centre Advertising Index Notes & Errata Building The Micromite Plus Explore 100 Module – Page 80. October 2016  1