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Contents SILICON CHIP www.siliconchip.com.au Vol.26, No.12; December 2013 Features 16 Electric Superbikes: The Very Fast Sounds Of Silence Capable of speeds in excess of 200km/h, these electric superbikes from Ripperton and Varley are not only fast but almost silent – by Ross Tester 22 Update Your Car’s Interior With LED Lighting Swapping out your car’s old-fashioned incandescent interior lamps for cool white LED lamps is easy to do. They’re brighter, draw far less current and have much better colour rendition – by Leo Simpson 44 A Look At The New PIC32MZ Microcontroller Microchip now has an updated version of the PIC32 microcontroller, called the PIC32MZ. It’s faster, has better peripherals, a new CPU, more memory and can remap its I/O pins to aid PCB layout – by Geoff Graham Update Your Car’s Interior With Cool LED Lighting – Page 22. Build An Electronic Bellbird – Page 26. 88 Review: Opus One A2696 DAB+ & Internet Tuner This digital tuner from Altronics not only receives DAB+ signals but also “tunes” internet radio stations with ease – by Geoff Graham Pro jects To Build 26 Build An Electronic Bellbird Bring the sounds of the bush into your loungeroom. This simple project mimics the musical bell-like sounds of a real Bellbird (or Bell Miner) and has a dynamic LED chaser display as well – by John Clarke 34 PortaPAL-D: A Powerful, Portable PA System, Pt.1 Featuring Li-Po battery operation, high-efficiency loudspeakers and a 100W class-D amplifier, the PortaPAL-D is ideal for busking, sports events, meetings or anywhere you need a powerful, portable PA system – by John Clarke 64 More Reception Modes For The SiDRADIO & SDRs Want to get DAB+ reception on your SDR without unplugging the DVB-T dongle and plugging it into a different USB port on your PC? Want to receive narrowband digital mobile radio signals as well? Here’s how – by Jim Rowe 80 “Tiny Tim” 10W/Channel Stereo Amplifier, Pt.2 This month, we show you how to assemble the amplifier and power supply PCBs and describe the case preparation – by Nicholas Vinen & Leo Simpson Special Columns PortaPAL-D: A Powerful, Portable PA System – Page 34. 58 Serviceman’s Log Variety is the spice of life & helps pay the bills – by Dave Thompson 70 Circuit Notebook (1) Simple 2-Coil VLF Metal Locator; (2) USB Keyboard Emulation For A Microprocess­or; (3) Re-housing An Apple Macbook Power Adaptor; (4) Revised Firmware For USB MIDI-Mate; (5) X-Y Test Pattern Generator For Analog Scopes 92 Vintage Radio Too Cool for School: Kriesler 41-47 “Mini” transistor radio – by Ian Batty Departments   2 Publisher’s Letter   4 Mailbag siliconchip.com.au 25 Subscriptions 57 Product Showcase 96 Online Shop 98 Ask Silicon Chip 103 Market Centre Tiny Tim 10W/Channel Stereo Amplifier, Pt.2 – Page 80. December 2013  1