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Contents Vol.37, No.08 August 2024 12 Tracking and Locating Devices Modern tech makes it easy to track the location of people and property. These trackers can be used for locating children, pets or important belongings over potentially long distances. By Dr David Maddison, VK3DSM Location tracking Electronics Manufacturing in Australia Starting on page 38 38 Electronics Manufacturing in Oz Local electronics manufacturing has a long history in Australia, from garages to large factories. These companies included Astor, AWA, EMI, Pye, Philips and many more from the 1920s to 1970s. Part 1 by Kevin Poulter Historical feature 64 Altium Designer 24 The newest yearly release of Altium is here, so lets go over what has been added. We thought 3D-MID is an interesting new feature, which allows tracks and components to be placed on 3D objects. Review by Tim Blythman EDA software 27 The Styloclone Our Styloclone is a reinvention of the classic Stylophone musical instrument. It is a great introduction to both music & electronics. The whole project fits on a single board and can be mounted in a case or freeform. By Phil Prosser Musical instrument project 44 Dual Mini LED Dice Combining the old and new is this pocket-sized project which uses LEDs to display two six-sided dice. It runs from a coin cell and is controlled either by pressing a button or shaking it. By Nicholas Vinen Game project 55 Jaycar-sponsored Mini Projects This month, we have an ultrasonic garage door notifier which send updates via email, and can also tell you if there’s a car parked in the garage. Plus a stroboscope & tachometer project to measure rotation speed. By Tim Blythman Mini projects 70 Beer Can Filler This semi-automatic can filler is a great tool for a home brewer, and it’s not just limited to beer! You can build it in an afternoon for a fraction of the cost of a commercial product. By Brandon Speedie Brewing project 78 180-230V DC Motor Speed Controller This Speed Controller is intended for high-voltage DC motors like those in lathes, treadmills, conveyor belts and more. This article covers the assembly, testing and setup of the Controller. Part 2 by John Clarke Motor speed control project Altium Designer 24 REVIEW, PAGE 64 Beer Can Filler Project on page 70 2 Editorial Viewpoint 5 Mailbag 61 Circuit Notebook 87 Vintage Radio 92 Serviceman’s Log 98 Online Shop 100 Ask Silicon Chip 103 Market Centre 104 Advertising Index 104 Notes & Errata 1. Reading a BCD switch with one pin 2. Op amp-based guitar equaliser 3. Model railway tunnel timer HMV 42-71 receiver by Marcus Chick