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Contents Vol.39, No.10 October 2026 12 Improvised Electronics, Part 2 Hobbyists can fabricate valves, transistors and even simple integrated circuits in their own home. So let’s continue looking at how people can make basic and even advanced electronic components. By Dr David Maddison, VK3DSM DIY components 50 Motor Control, Part 1 Improvised Electronics Part 2: Page 12 Page 60 This series will cover many of the different types of motors in depth, looking at how they work and can be controlled. To kick things off, we will start with the common DC motor. By Andrew Levido Electronics theory 68 A guide to EV Charging We describe the most common ways you can charge an electric vehicle, from slow charging at home (Level 1) to fast charging when out and about (Level 3 / DC fast chargers). By Geoff Graham Electric vehicles 90 The Philco Model 38-7 This radio is one of the finest medium-wave and shortwave band domestic receivers to come from the USA before WW2. This is also not the first time I’ve restored the radio, having previously worked on it around 50 years ago. Br Dr Hugo Holden Vintage Radio Audio Spot Frequency Test Generator A practical guide to EV Charging 28 Mighty USB-C Bench Supply Page 68 By using USB Power Delivery (USD-PD), you can build your own adjustable power supply that can deliver up to 20V at 2A. It has an adjustable current limit, software-based fuse emulation, an OLED status display and more. Part 1 by Tim Blythman Power supply project 2 Editorial Viewpoint 4 Mailbag 38 Programmable USB-PD Modules 37 Kits 47 Circuit Notebook 73 Subscriptions 82 Serviceman’s Log 88 Online Shop 101 Ask Silicon Chip 103 Market Centre 104 Advertising Index 104 Notes & Errata In this article we look at the Adafruit HUSB238 USB-PD breakout module and our own-design for a USB-PPS module, which is inspired by the Adafruit design. Either one can be used for our Bench Supply above. By Tim Blythman USB-PD & USB-PPS module 60 Audio Spot Frequency Oscillator With just a few modules and other parts, you can produce low-distortion 1V RMS test signals at specific frequencies between 20Hz and 20kHz. You can also use it for testing RIAA preamps, SSB transmitters and more. By Richard Kabzinski Test equipment project 74 Phenomenal Pinball Machine This series explains how to design and build every part of your own Pinball Machine. In the final part of this series, we finish the deck and integrate the electronics, wiring and electromechanical systems. Part 5 by Phil Prosser Gaming project 1. Stackable button selector panel 2. Busking amplifier 3. Darlington-based amplifier buffer