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| VOL27 NO1 JANUARY 1991 WIN IT BACK! Enter our monthly draw and you too could let us pay for your purchases 61 CONSTRUCTIONAL PROJECTS LOW COST CAR ALARM by Kevin Browne 12 Offers many of the facilities featured in top manufactured models and yet is easy to build and install with the minimum of wiring. MICROCONTROLLING THE ROBOT CAR - PART TWO by Alan Pickard 27 Examining more of the hardware and software aspects, with suggestions for future developments, including infra-red links. BIKE COMPUTER - FART THREE by John Becker 35 Final testing and mounting, answering a few queries, and on to using the main board as an independent 6502 microcontroller. LCD REV COUNTER by John Becker 43 Designed as an answer to a reader's query, this counter has multiple input ratios and may be set for different sampling rates. SPECIAL FEATURES PRIVATE RADIO PAGING by John Lord 21 The Senior Product Manager of Philips Communications and Security increases our awareness of a lesser known but vital communications system. NICAM STEREO TV by Ian Poole 24 With tv stereo sound increasingly available nationwide, we explain how the signal is superimposed without overloading the transmission spectrum. HOME-BASE by Ian Burley 32 Caller-ID announces itself to the UK and the Beeb reveals a technique that could offer nearHDTV quality without making your set obsolete. LASERS - PART THREE by Mike Sanders 38 Concluding the series by examining the industrial applications for lasers, from holography to cutting and welding. BASIC ELECTRONICS - PART THIRTEEN by Owen Bishop 48 Time is of the essence with this month's know-how' feature, particularly with regard to frequency in audio and other analogue circuits. HISTORY OF TECHNOLOGY - AMBROSE FLEMING by Ian Poole 52 Arguably the father of modern electronics, Fleming invented the thermionic valve and made great advances in the efficiency of measuring instruments. REGULAR FEATURES EDITORIAL by John Becker 9 LEADING EDGE by Barry Fox - Querying Phone Base 8 SPACEWATCH by Dr Patrick Moore - No great attractor 47 INDUSTRY NOTEBOOK by Tom Ivall - Man and mips 57 TRACK FEEDBACK - Readers' letters, and a few answers 31 WINNING READERS - the latest winners of our Loyalty Bonus 53 NEWS AND MARKETPLACE - what's new in electronics 4 SPECIAL SUBS OFFER - FREE binders for PE subscribers 10 PCB SERVICE - professional PCBs for PE Projects 52 ARMCHAIR BOOKSHOP - haven for practical bookworms 58 ADVERTISERS' INDEX - locating favourite stockists 62
VOL 27 NO 2 FEBRUARY 1991 BUILD IT FOR FREE! Find out how you can win your share of £2000 61 CONSTRUCTIONAL PROJECTS DIGITAL COMPASS by John Becker 11 For the experimenter and gadgeteer alike, this project describes how various sensors can be used to detect changes in the Earth's magnetic field. A stand alone 65C02 microprocessor system provides enough computing power to convert direction to a digital readout. RESISTOR CALCULATOR by Stephen Stoptord 27 How to build a neat and simple tool that uses geometry to work out the values of parallel resistances. SERIAL MULTIPLEXER by Ron Goulding 34 By allowing more than one device to use the RS232 serial system, this project paves the way to low cost computer networking. FROST ALARM by John Becker 44 This simple circuit shows how easy it is to build an electronic temperature sensing device. SPECIAL FEATURES A TO Z OF DIGITAL DEVICES by Chris Kelly 21 Chips can be used to do almost anything these days. The problem is in knowing what is available and which is best for a particular situation. A look through this list should prove both informative and helpful. SYNCHRONOUS LOGIC DESIGN by Tim Watson 29 Building Boolean logic circuits that incorporate feedback can be quite difficult if the wrong methodology is used. The design rules described in this article will make the process easier. FIBRE OPTICS by Mike Sanders 39 Following on from his series about lasers, Mike looks into how threads of glass can be used to transfer information at high speed. HISTORY OF TECHNOLOGY - ALESSADRO VOLTA Dylan Poole 46 If not the most famous, it is certainly the most used name in electrical and electronic engineering.This month Ian looks at the man whodiscovered methane and invented the battery. BASIC ELECTRONICS - PART FOURTEEN by Owen Bishop 48 More on frequency and filters. This month our beginners course moves on to oscillators and tone controls. REGULAR FEATURES EDITORIAL 9 LEADING EDGE by Barry Fox . Caller identification 8 WINNING READERS - the latest Loyalty Bonus results 47 SPACEWATCH by Dr Patrick Moore - ROSAT 52 INDUSTRY NOTEBOOK by Tom Ivall - Biosensors 57 NEWS AND MARKETPLACE - what's new in electronics 4 PCB SERVICE - professional PCBs for PE Projects 60 ARMCHAIR BOOKSHOP - practical browsing 57 ADVERTISERS' INDEX - who stocks what 62
March 1991 Volume 26 #5 Projects MIDI Analyser 10 R.A. Penfold Computerised Signal Generator 20 John Becker A Car Positioning Aid 27 Owen Bishop Features Converting ideas into Cash 17 Barbara Cookson Basic Electronics Part 15 35 Owen Bishop Amateur Radio 45 Ian Poole The IC Story 51 Ian Poole CAD Review 58 Kenn Garroch Regulars Innovations A look at the latest chips and gadgets 5 Techniques Andrew Armstrong answers your questions 8 Data Sheet The workings of the 6402 UART 32 Barry Fox Squeezing four new TV stations onto channel 5 . . . . . .62 Editorial This month PE has both a new look and some new regular sections. innovations replaces the news pages and Data Sheet provides an area to have an in depth look at both new and commonly used integrated circuits. With the end of Basic Electronics, the introduction of the Techniques section will allow readers to tap the brain of an electronics expert.
April 1991 Volume 27 No. 4 BUILD IT A PC EEPROM Programmer 18 Interface with a PC, program an 8255 and blow a tow chips with John Beckers latest project Don't Touch That Box! 37 This easy to build portable personal burglar alarm has many uses. As Owen Bishop points out, it also protects itself. FEATURES Computer interfacing 9 There is a User Port hidden away in almost every computer Chris Hanson roots around and finds them all. So You Thought You Knew Switches 24 The humble switch is not the binary brain it appears to be. Anthony Smith shows that switches do a lot of things beside go on and off. How It Works 42 The Macintosh computer led the way for WIMPs, we take the back off and look inside. Medical Electronics 45 From electric shocks to cardiac arrests. 100 years of development surveyed by Douglas Clarkson. Wavelengths 5 Your feedback on your magazine. Innovations 6 The latest chips and gadgets, and a roundup of the electronics world. Data Sheet 31 The workings of the 8212. Practical Components 34 All about the humble Resistor. PCB Service 50 We print it, you build it Book Reviews 57 The latest hard copy evaluated. Techniques 58 Andrew Armstrong answers your questions. Barry Fox 62 Think three times before choosing a portable computer
May 1991 Volume 27 No. 4 BUILD IT TeleSnap 15 Grab pictures off your TV and save them with a PC Very Low Cost Power Supply 27 Owen Bishop shows how easy it is to build a safe simple PSU PE Chronos 37 Build a Universal Counter Timer with this project Digital Compact Cassette 10 Philips breakthrough in personal HiFi revealed by Ian Burley Transistors 22 The origins of one of the most fundamental inventions ever How It Works 46 We take the lid off a VCR Microcontrollers 44 Replace dedicated circuitry with a single chip - but which one? Superconductors 50 The room temperature superconductor stands to revolutionise the world. John Brook examines the background Wavelength 5 We listen to what you say Innovations 6 A look at the latest chips and gadgets, and a roundup of international electronics news Data Sheet 31 The widely used 6522 VIA gets the data sheet treatment Practical Components 34 Two bits of metal and an insulator - there is a lot more to capacitors than meets the eye Techniques 58 Andrew Armstrong with power controllers and Standing Wave Ratios Book Reviews 61 The latest in libraryware Barry Fox 63 The President of Philips looks to the future and reveals the identity of a secret partner
June 1991 Volume 27 No. 5 BUILD IT Phantom Phone 15 Confuse everyone with this cell-phone trick device, and learn how to create simple sound effects into the bargain. PE Chronos 37 The second part of our Universal Counter Timer project Ultra-Vision 46 See how the world looks in ultrasound with this PC based scanner FEATURES Optical Fibre Technology 10 Once optical fibres replace conventional phone lines, optronics may replace electronics. A Short History of TV 21 Find out why it has taken 70 years to get satellite communications into our homes. Will there ever be a world standard? Seetrax Review 26 Computer Aided Design at your fingertips. How It Works 44 The Dot Matrix Printer is still the basic system for hard copy output from most small computers. REGULARS Wavelength 5 Read what you think of PE. Innovations 6 The latest chips, meters, computers, catalogues and events plus the usual roundup of international electronics news. Data Sheet 31 Full specifications and diagrams of the new Hitachi H8/300 super powered microcontroller Practical Components 34 The diodes comes in many forms even though it is the simplest member of the semiconductor family. Techniques 58 This month a rain detector and an explanation of guitar pickups. Book Reviews 61 Reference material reviewed. Barry Fox 63 Looking through expert eyes, Barry views the electronics industry.
July 1991 Volume 27 No. 7 BUILD IT A Low Hertz Meter 25 More essential test equipment to build and use. PE Chronos 37 The final part of the Universal Counter Timer. Logic Analyser 47 A digital code convertor for the workshop. FEATURES The Satellite Story 10 The Earth is caught up in an invisible web of telecommunications. Since the launch of TelStar, satellites have played an important role. Neural Networking 16 Computers modelled on the human brain may offer startling new processing capabilities. Innovation and Alienation 22 Technology affects our values in subtle ways. Printed Circuit Construction 43 Almost all designs use PCBs. Learn how to build them yourself. REGULARS Wavelength 5 The great debate over resistor symbols rumbles on plus modifications to the PE Tele-Snap. Innovations 6 Microcircuitry, macroeconomics, meters and much more. Data Sheet 31 Full specifications and diagrams of the new Hitachi 1-18/330 super powered microcontroller. Practical Components 34 The transistor is the key component in modern logic circuit technology. Techniques 58 A variety of problems solved by our technical expert, including temperature sensors and guitar pickups. Barry Fox 63 Once again the hydra-like problem of radio spectrum bandwidth allocation rears its ugly heads.
August 1991 Volume 27 No. 7 BUILD IT PE Chronos 37 Not the final part of the Universal Counter Timer The PE LUX 25 A sophisticated lighting control circuit from John Becker FEATURES Charge Coupled Devices 11 What do video cameras, astronomers and delay lines have in common? Mass Memory 16 Anne Sutton relates the history of computer storage. Out Of A Job 22 Tom lvall observes that times are getting harder RS232 And All That 43 Connecting up is a lot easier than you may think. REGULARS Wavelengths 5 Positively the last letters about resistor symbols (we hope). Innovations 6 Kodak's electronic camera and cheap printers in the news. Silicon Valley 10 A roundup of the latest on silicon. New Product Developments 25 The new Sony Mini-disk offers compact high quality sounds but can it compete? How It Works 30 This month we look inside a multi-meter Data Sheet 32 A bundle of remote control chips, the ML 928/9, SL490 and UM3750. Practical Components 34 Connecting up with cables and wires. Techniques 53 The final part of the humidity controller plus a battery level indicator Book Reviews 61 Some basic introductions to electronics and radio. Barry Fox 62 CD-ROMs are finding more and more uses but they are not without their drawbacks.
September 1991 Volume 27 No. 9 BUILD IT High Quality MOSCODE Amplifier 17 This valve based amp gives 100W of superb stereo Hi-Fi power PE Chronos 37 This month, the main board is built and tested. FEATURES Product Preview 9 PE examines AGE, the latest in educational electronic software. Technology in The Office 11 James Garter looks into what is needed in a hi-tech office. Pulsed Logic 46 Sophisticated logic circuit simulation on a PG. Digital Multi-Meters 43 Wanna buy a meter? Jason Sumner examines 7 of the best. Teach Yourself Electronics 61 Protolab simulates a variety of simple circuits on a PG. REGULARS Wavelengths 5 Lasers and Sony's Mini-disc, just some of the topics under discussion. Innovations 6 MS-DOS 5.0, ERS-1 and HDTV in the news this month. Silicon Valley 10 A round-up of interesting ICs from around the world. New Product Developments 25 Ian Burley on Sony's Mini-Disc and Samsung 's security robots. How It Works 30 What's inside a video camera - Derek Gooding explains. Data Sheet 32 Some CRT control circuits from National Semiconductor Practical Components 34 The Battery is vital to portable electronics. Practical Technology 44 The fax machine, Kevin Jones on the Amstrad and Samsung. Techniques 57 Andrew Armstrong desribes a fluorescent light dimmer. Barry Fox 63 New technology could mean the end of video rental
October 1991 Volume 27 No. 10 BUILD IT Project SMD 20 Put the power of surface mount devices to practical use. PE Chronos 36 More circuit details for our long-running universal timer project. Samfex 45 Build a digital sound sampling effects unit. FEATURES Product Preview 9 Philips' latest LCD screen multimeter incorporates an oscilloscope. AM Stereo 14 Ian Poole looks at the future of the Medium Waveband. Ham Radio in New York 42 A special report from David Jardine in the Big Apple. Ungar competition 53 Win a soldering station REGULARS Wavelengths 5 Electric organs, a plea for projects and a Cascode correction. Innovations 6 Canon's wide stereo speaker system, Olympus satellite back on line. Silicon Valley 23 Credit card memories, flash ADCs and a source of old chips. New Product Developments 25 Fuzzy logic features heavily this month. How It Works 30 Infra-red motion detectors are common in modern security systems. Data Sheet 32 Computer aided design with the UAF42 flexible filter Practical Components 34 The surface mount device allows for faster circuitry manufacturing. Techniques 52 Aerials explained by our technical expert. Book Reviews 61 Feedback, Radio Wave Guide, Principles of Electronics Barry Fox 62 Cable TV could usher in a new age of telecommunications
November 1991 Volume 27 No. 11 FEATURES Technology Update 10 The latest in solar cells, optical discs and transistor technology The RSGB's New Licence 12 Radio expert Ian Poole describes how the radio waves are now available to everyone Computer Aided Design 16 Getting into CAD is not as straightforward as it may seem Computer Displays 25 Will LCDs replace CRTs? Paul Kennedy looks at the basic technology A Virtual instrument 43 Jason Sumner plugs a card into his PC to turn it into a DMM BUILD IT PE Chronos 36 Putting together the display board Rain Gauge 45 Measure rainfall the professional way with Owen Bishops pluviometer REGULARS Wavelengths 5 Help with old organ components and more on the MOSCODE amplifier Innovations 6 Westlands Merlin and the world's smallest desktop PC are in the news Silicon Valley 14 ADCs to beat all the records plus super powered i/o New Product Developments 20 In car navigation and the latest developments in airline entertainment How It Works 30 The Superhetero dyne Radio Data Sheet 32 NS32CG 160 32-bit processor featuring built in graphics commands Practical Components 34 Inductors Practical Technology 52 Barry Fox on the problems and pitfalls of international electronic mall Techniques 57 All you need to know about light detecting switches Barry Fox 62 3D-TV technologies abound, but are they any good?
December 1991 Volume 27 No. 12 FEATURES Christmas Presents 16 PE gets its requests off to Santa The Making Of A Sun 20 Atomic Fusion, the power source of the future Electronics Under The Hammer 30 Flogging the history of electronics PE's Trivia Quiz 45 How much do you really know about electronics? Pure Sound For Your Ears 47 Build a top quality headphone valve amplifier REVIEWS Wide Imaging Sound 38 Canon's speakers break the mould Animated Circuits 40 See those electrons move with ACE Scanning The Radio Waves 43 Listening in on all bands The Way Of The Universe 44 Book reviews looks at The Matter Myth REGULARS Wavelengths 5 Are flat screen TVs here at last? Innovations 6 Intel's latest chips and an innovation competition What's New 9 Palmtops, video recorders and ISDN Silicon Valley 14 Converting from analogue to digital Show Report 25 Amstrad videophone, PC on a chip and the new Psion series 3 portable computers How It Works 32 Using the mains for an intercom Practical Technology 35 Image scanners, is this the way of the future? Techniques 57 Three seasonal solutions to flashing those lights Barry Fox 62 BT makes excuses about its new numbers | ||
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