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Practical Electronics Editorial offices Practical Electronics Tel 01273 777619 Electron Publishing Limited Mob 07973 518682 1 Buckingham Road Fax 01202 843233 Brighton Email pe<at>electronpublishing.com East Sussex BN1 3RA Web www.electronpublishing.com Advertisement offices Practical Electronics Adverts Tel 01273 777619 1 Buckingham Road Mob 07973 518682 Brighton Email pe<at>electronpublishing.com East Sussex BN1 3RA Editor Matt Pulzer General Manager Louisa Pulzer Digital subscriptions Stewart Kearn Tel 01202 880299 Online Editor Alan Winstanley Web Systems Kris Thain Publisher Matt Pulzer Print subscriptions Practical Electronics Subscriptions PO Box 6337 Bournemouth BH1 9EH Tel 01202 087631 United Kingdom Email pesubs<at>selectps.com Technical enquiries We regret technical enquiries cannot be answered over the telephone. We are unable to offer any advice on the use, purchase, repair or modification of commercial equipment or the incorporation or modification of designs published in the magazine. We cannot provide data or answer queries on articles or projects that are more than five years old. Questions about articles or projects should be sent to the editor by email: pe<at>electronpublishing.com Projects and circuits All reasonable precautions are taken to ensure that the advice and data given to readers is reliable. We cannot, however, guarantee it and we cannot accept legal responsibility for it. A number of projects and circuits published in Practical Electronics employ voltages that can be lethal. You should not build, test, modify or renovate any item of mains-powered equipment unless you fully understand the safety aspects involved and you use an RCD (GFCI) adaptor. Component supplies We do not supply electronic components or kits for building the projects featured, these can be supplied by advertisers. We advise readers to check that all parts are still available before commencing any project in a back-dated issue. Advertisements Although the proprietors and staff of Practical Electronics take reasonable precautions to protect the interests of readers by ensuring as far as practicable that advertisements are bona fide, the magazine and its publishers cannot give any undertakings in respect of statements or claims made by advertisers, whether these advertisements are printed as part of the magazine, or in inserts. The Publishers regret that under no circumstances will the magazine accept liability for non-receipt of goods ordered, or for late delivery, or for faults in manufacture. Transmitters/bugs/telephone equipment We advise readers that certain items of radio transmitting and telephone equipment which may be advertised in our pages cannot be legally used in the UK. Readers should check the law before buying any transmitting or telephone equipment, as a fine, confiscation of equipment and/or imprisonment can result from illegal use or ownership. The laws vary from country to country; readers should check local laws. Practical Electronics | August | 2024 Volume 53. No. 8 August 2024 ISSN 2632 573X Editorial Exciting News! Change is in the air. Practical Electronics is the world’s longestrunning hobby electronics magazine. Our first issue came out in November 1964 when commercial transistors had been available for less than a decade and ICs were only just beginning to appear – at eye-watering prices that only NASA could afford. Many fine magazines have appeared (and sadly disappeared) in the last 60 years, but PE has endured and thrived. I’m sure that one of the main reasons PE has survived is the quality of its content – thanks to the very hard work of all who write and work for the magazine. But there is another reason – we’ve never been afraid to change, and now it’s time for a new chapter in PE’s long-running story. We are joining the Silicon Chip publishing stable. What does this mean for Practical Electronics? Silicon Chip is an Australian magazine with which we have shared content since the beginning of 2008. They have provided sophisticated projects of the highest quality and it’s been a very successful relationship. So successful in fact, that when I mentioned to its editor/publisher Nicholas Vinen that I was thinking of retiring we decided to work out a way to ensure PE wouldn’t retire with me. So, the big question is where does PE go from here? The short answer is most things will stay exactly as they are. All of PE’s authors will continue to contribute exactly as they do now. Nicholas is absolutely clear that PE must not become a ‘Silicon Chip light’, that would be pointless. If anything, the magazine will get better – Nicholas intends to up the pagination which means more pages and more content, all of which will benefit you the reader. Thank you I first started working on PE nearly 30 years ago with a small job producing its circuit diagrams. In 2008 Mike Kenward, the editor/ publisher asked me if I’d consider becoming PE’s editor. I jumped at the opportunity, and it’s been an exciting and rewarding role. Then, at the start of 2019 I became publisher, just in time to catch the full brunt of the pandemic, but we survived! Throughout my time with PE I have had fantastic support from our many talented contributors – PE is nothing without its creative scribes – thank you one and all; in no particular order: Alan Winstanley, Jake Rothman, Ian Bell, Clive ‘Max’ Maxfield, Mike Tooley, Julian Edgar, Mike Hibbett, Phil Boyce, Mark Nelson, Barry Fox, Stewart Kearn, Kris Thain, the late John Becker, Mike Kenward… and to anyone I’ve left off this list, apologies! Last, but by no means least, thank you to all our many loyal readers and subscribers. You’ve kept us going and I’m sure your continued support will enable Nicholas to carry on bringing you the very best in electronics publishing over the coming years. Matt Pulzer Publisher 7