Silicon ChipJamieson 'Jim' Rowe is retiring - July 2024 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Jamieson 'Jim' Rowe is retiring
  4. Feature: Repairable Electronics by Dr David Maddison, VK3DSM
  5. Project: Automatic LQ Meter by Charles Kosina
  6. Review: The Raspberry Pi 5 by Tim Blythman
  7. Project: 180-230V DC Motor Speed Controller by John Clarke
  8. Project: New use for Mains Sequencer by John Clarke
  9. Feature: Adding solar charging to a van by Roderick Boswell
  10. Project: Lava Lamp Display by Tim Blythman
  11. Project: Digital Compass by Tim Blythman
  12. Project: Workman 1kW Loudspeaker by Allan Linton-Smith
  13. Vintage Radio: One-valve superhet radio by Fred Lever
  14. Serviceman's Log: Computer abuse by Dave Thompson
  15. Subscriptions
  16. PartShop
  17. Market Centre
  18. Advertising Index
  19. Notes & Errata: DC Supply Protectors, June 2024; Fan Speed Controller Mk2, May 2024; Touchscreen Appliance Energy Meter, August-October 2016
  20. Outer Back Cover

This is only a preview of the July 2024 issue of Silicon Chip.

You can view 42 of the 104 pages in the full issue, including the advertisments.

For full access, purchase the issue for $10.00 or subscribe for access to the latest issues.

Items relevant to "Automatic LQ Meter":
  • Automatic LQ Meter main PCB (CSE240203A) (AUD $5.00)
  • 16x2 Alphanumeric module with blue backlight (Component, AUD $10.00)
  • Pulse-type rotary encoder with pushbutton and 18t spline shaft (Component, AUD $3.00)
  • Automatic LQ Meter short-form kit (Component, AUD $100.00)
  • Automatic LQ Meter front panel (CSE240204A) (PCB, AUD $5.00)
  • Firmware for the Automatic LQ Meter (Software, Free)
  • Automatic LQ Meter drilling diagram (Panel Artwork, Free)
Items relevant to "180-230V DC Motor Speed Controller":
  • 180-230V DC Motor Speed Controller PCB [11104241] (AUD $15.00)
  • 180-230V DC Motor Speed Controller PCB pattern (PDF download) [11104241] (Free)
  • 180-230V DC Motor Speed Controller lid panel artwork and drilling templates (Free)
Articles in this series:
  • 180-230V DC Motor Speed Controller (July 2024)
  • 180-230V DC Motor Speed Controller Part 2 (August 2024)
Items relevant to "New use for Mains Sequencer":
  • Mains Power-Up Sequencer PCB [10108231] (AUD $15.00)
  • Firmware (ASM and HEX) files for the Mains Power-Up Sequencer (Software, Free)
  • Mains Power-Up Sequencer PCB pattern (PDF download) [10108231] (Free)
  • Panel labels and cutting diagrams for the Mains Power-Up Sequencer (Panel Artwork, Free)
  • Mains Power-Up Sequencer PCB [10108231] (AUD $15.00)
  • PIC16F1459-I/P programmed for the Repurposed Mains Power-Up Sequencer (1010823M.HEX) (Programmed Microcontroller, AUD $10.00)
  • Firmware (ASM and HEX) files for the Mains Power-Up Sequencer (Software, Free)
Articles in this series:
  • Mains Power-Up Sequencer, Pt1 (February 2024)
  • Mains Power-Up Sequencer, Pt2 (March 2024)
  • New use for Mains Sequencer (July 2024)
  • Mains Power-Up Sequencer, part one (February 2025)
  • Mains Power-Up Sequencer, part two (March 2025)
Items relevant to "Lava Lamp Display":
  • Arduino firmware for JMP002 - Lava Lamp Display (Software, Free)
Articles in this series:
  • Symbol USB Keyboard (May 2024)
  • Thermal Fan Controller (May 2024)
  • Wired Infrared Remote Extender (May 2024)
  • Self Toggling Relay (June 2024)
  • Arduino Clap Light (June 2024)
  • Digital Compass (July 2024)
  • Lava Lamp Display (July 2024)
  • JMP007 - Ultrasonic Garage Door Notifier (August 2024)
  • JMP009 - Stroboscope and Tachometer (August 2024)
  • No-IC Colour Shifter (September 2024)
  • IR Helper (September 2024)
  • JMP015 - Analog Servo Gauge (October 2024)
  • JMP012 - WiFi Relay Remote Control (October 2024)
  • JMP013 - Digital spirit level (November 2024)
  • JMP014 - Analog pace clock & stopwatch (November 2024)
  • WiFi weather logger (December 2024)
  • Automatic night light (December 2024)
  • BIG LED clock (January 2025)
  • Gesture-controlled USB lamp (January 2025)
  • Wireless flashing LEDs (February 2025)
  • Transistor tester (February 2025)
  • RF Remote Receiver (March 2025)
  • Continuity Tester (March 2025)
  • Discrete 555 timer (April 2025)
  • Weather monitor (April 2025)
Items relevant to "Digital Compass":
  • Firmware for JMP008 - Digital Compass (Software, Free)
Articles in this series:
  • Symbol USB Keyboard (May 2024)
  • Thermal Fan Controller (May 2024)
  • Wired Infrared Remote Extender (May 2024)
  • Self Toggling Relay (June 2024)
  • Arduino Clap Light (June 2024)
  • Digital Compass (July 2024)
  • Lava Lamp Display (July 2024)
  • JMP007 - Ultrasonic Garage Door Notifier (August 2024)
  • JMP009 - Stroboscope and Tachometer (August 2024)
  • No-IC Colour Shifter (September 2024)
  • IR Helper (September 2024)
  • JMP015 - Analog Servo Gauge (October 2024)
  • JMP012 - WiFi Relay Remote Control (October 2024)
  • JMP013 - Digital spirit level (November 2024)
  • JMP014 - Analog pace clock & stopwatch (November 2024)
  • WiFi weather logger (December 2024)
  • Automatic night light (December 2024)
  • BIG LED clock (January 2025)
  • Gesture-controlled USB lamp (January 2025)
  • Wireless flashing LEDs (February 2025)
  • Transistor tester (February 2025)
  • RF Remote Receiver (March 2025)
  • Continuity Tester (March 2025)
  • Discrete 555 timer (April 2025)
  • Weather monitor (April 2025)
Items relevant to "Workman 1kW Loudspeaker":
  • 2-Way Passive Crossover PCB [01205141] (AUD $20.00)
  • 2-Way Passive Loudspeaker Crossover PCB pattern (PDF download) [01205141] (Free)

Purchase a printed copy of this issue for $12.50.

SILICON SILIC CHIP www.siliconchip.com.au Publisher/Editor Nicholas Vinen Technical Editor John Clarke – B.E.(Elec.) Technical Staff Jim Rowe – B.A., B.Sc. Bao Smith – B.Sc. Tim Blythman – B.E., B.Sc. Advertising Enquiries (02) 9939 3295 adverts<at>siliconchip.com.au Regular Contributors Allan Linton-Smith Dave Thompson David Maddison – B.App.Sc. (Hons 1), PhD, Grad.Dip.Entr.Innov. Geoff Graham Associate Professor Graham Parslow Dr Hugo Holden – B.H.B, MB.ChB., FRANZCO Ian Batty – M.Ed. Phil Prosser – B.Sc., B.E.(Elec.) Cartoonist Louis Decrevel loueee.com Founding Editor (retired) Leo Simpson – B.Bus., FAICD Silicon Chip is published 12 times a year by Silicon Chip Publications Pty Ltd. ACN 626 922 870. ABN 20 880 526 923. All material is copyright ©. No part of this publication may be reproduced without the written consent of the publisher. Subscription rates (Australia only) 6 issues (6 months): $70 12 issues (1 year): $127.50 24 issues (2 years): $240 Online subscription (Worldwide) 6 issues (6 months): $52.50 12 issues (1 year): $100 24 issues (2 years): $190 For overseas rates, see our website or email silicon<at>siliconchip.com.au * recommended & maximum price only Editorial office: Unit 1 (up ramp), 234 Harbord Rd, Brookvale, NSW 2100. Postal address: PO Box 194, Matraville, NSW 2036. Phone: (02) 9939 3295. ISSN: 1030-2662 Printing and Distribution: Editorial Viewpoint Jamieson ‘Jim’ Rowe is retiring By the time you read this, Jim will be just about finishing up his last work for Silicon Chip. He is undoubtedly keenly looking forward to a well-earned retirement starting in just a few days! I have had the pleasure of working with him since I started at Silicon Chip in early 2010. Of course, I read some of his articles before that. Those of you who started with Radio & Hobbies may remember him from as far back as March 1960, when he first appeared on the list of Technical Staff at that magazine. So he has been involved in electronics journalism for nearly 65 years at this stage – I guess you’d have to call that a pretty good run! Jim was the editor of Electronics Australia (the more recent name for Radio & Hobbies) for a time. He came to work for Silicon Chip soon after leaving that position. He has been writing articles and drawing virtually all of our diagrams since early 2001. If you’re interested, you can read the full story of his career in the July 2023 issue, when he wrote an article titled “Electronics in Australia; Jim Rowe’s time at RTV&H and Electronics Australia” (siliconchip. au/Article/15862). He famously developed the EDUC-8 Microcomputer; its design was published in EA from August 1974 to August 1975. It was the first kit computer design published in Australia and the second in the world (by one month). I would usually be concerned about the departure of someone with Jim’s experience. However, luckily, we have Jim Rowe in the Electronics someone else lined up who should be Australia office, 1989. able to pick up the work and deliver the sort of quality diagrams our readers are accustomed to. He happened to be retiring from his full-time job right around the same time Jim decided to call it quits, a truly fortuitous coincidence. We still have a few articles Jim has written that we haven’t had space to publish yet, so if you enjoy his articles, you will have a few more to look forward to over the coming months. I expect they will all be published by the end of this year. While he has designed projects in the past, lately, he has mainly been concentrating on reviewing various electronic modules. We plan to continue publishing that type of article, although, with Jim’s departure, they may not be as frequent as before. My thanks go to Jim for all the assistance he has provided us over the last 25-odd years. I hope he has some hobbies that he can enjoy in all his free time! by Nicholas Vinen 24-26 Lilian Fowler Pl, Marrickville 2204 2 Silicon Chip Australia's electronics magazine siliconchip.com.au