Electronics: The Maplin Magazine (December 1986 - February 1987)

The December '86- February '87 issue of "Electronics: The Maplin Magazine" highlights projects such as a 6-Channel Burglar Alarm Panel and a Public Address System designed for use at events. It also delves into technical features like Transputers, which discuss parallel computer power and its implications for the future of computing. Overall, the magazine aims to serve electronics enthusiasts with DIY projects, technical insights, and the latest product reviews and updates.

Table Of Contents

Projects

• 6-Channel Burglar Alarm Panel : A comprehensive security system ideal for various applications, featuring channels that can be switched on or off from the panel, along with key switch and LED indicators for operational status.
• Public Address System : A portable amplifier system powered by a 12-volt car battery, designed to deliver up to 10 watts per channel for driving public address loudspeakers, suitable for outdoor events or gatherings.
• Test Gear & Measurements (Part 3) : Focused on the use of voltmeters, ammeters, and ohmeters in electronics testing and diagnostics, providing insights into the practical aspects of electrical measurements.
• Story of Radio : An exploration of radio technology, its history, and its impact on communication, including a review of new products in the 1987 Maplin catalogue related to radio and security systems.
• Six Circuits : Descriptions and applications of six different electronic circuits that can be assembled onto veroboard, highlighting their functionality and use cases.
• Tungsten Lamp Surge Controller : A detailed explanation of phase control techniques for regulating AC mains-powered lamps, with a focus on preventing surge damage and extending lamp life.

Features

• Transputers : An introduction to the cutting-edge technology of transputers and parallel array processing, outlining the future of computing with multiple processors working simultaneously to achieve faster performance.
• Notch Filter : Details on constructing a communications receiver add-on to enhance antenna tuning units and pre-amplifiers, including audio processing techniques to improve signal clarity.
• Machine Code Programming with the Z80 : Continuing the discussion on Z80 instruction set, this part illustrates basic programming techniques to perform practical tasks with the CPU.
• Which Resistor? : Guidance on selecting the appropriate resistor for different electronic projects, emphasizing the importance of understanding component specifications for optimal performance.
• Watts in an Amp? : The first part of a series on designing audio frequency (AF) power amplifiers, covering the critical design considerations and the complexity involved in constructing high-quality amplifiers.

Regulars

• Top 20 Books and Kits : Lists of the most popular books and DIY kits available through Maplin, offering a range of topics from basic electronics to advanced projects.
• Order Coupon and Subscriptions : Information on how to order products and subscribe to Maplin Magazine for regular updates on new projects, features, and product reviews.
• Catalogue Amendments and Corrigenda : Updates and corrections to the Maplin catalogue, ensuring readers have the latest and most accurate information.
• New Books : Announcements of new publications related to electronics and computing, expanding the resources available to enthusiasts and professionals.
• Classified Advertisements : A section for community engagement, offering a space for readers to buy, sell, or exchange electronic components and systems.