VOLUME 19 No. 1 JANUARY 1983 CONSTRUCTIONAL PROJECTS MICROCONTROLLER Part 3 by M. Tooley BA andD. Whitfield MA, MSc .. .. 20 Programming the PIA's and sample programming DIGITAL TACHOMETER .. .. .. .. .. .. 28 Car engine rev's to a resolution of ten FROSTWARNING , . .. .. .. .. 36 Provides warning indication of abnormal engine temperatures AUDIO BOOSTER by M. Tooley BA and D. WhittleldMA, MSc .. .. .. .. .. 39 20W add on for your ICE MICROGRASP Part 2 by Richard Becker 44 Final assembly with testing and calibration procedures ULTIMUM Part 3 .. .. .. .. .. .. .. .. 52 The complete interface system described GENERAL FEATURES SEMICONDUCTOR UPDATE byR. W. Coles .. .. .. .. .. 57 Featuring the 8001, DG221 INGENUITY UNLIMITED .. .. .. .. .. .. .. .. .. 62 Steam train "chuffer"-High gain, high frequency amplifiers-Telephone "bell" NEWS AND COMMENT EDITORIAL .. .. .. .. .. .. .. .. .. 15 NEWS AND MARKET PLACE 16 Including Countdown BAZAAR , . .. .. .. .. .. .. .. .. 34, 38, 64 Free readers' advertisements INDUSTRY NOTEBOOK byNexus 43 News and views on the electronics industry SPACEWATCH by Frank W. Hyde .. .. .. .. .. .. 51 Extra-terrestrial activities chronicled SPECIAL OFFER-CASSETTES .. .. .. .. .. .. 60 Bargain offer on high quality cassettes SPECIAL OFFER-LOGIC PROBE .. .. .. .. .. .. .. .. 65 SPECIAL SUPPLEMENT MICRO-FILE by R. W. Coles .. .. .. .. .. .. between pages 38 and 39 Filesheet 3 Z80 FRONT COVER: We would like to thank ACM Ltd. of Poole and Mr R. C. Cradock for the use of the Bonito car shown on the front cover, OUR FEBRUARY ISSUE WILL BE ON SALE FRIDAY, JANUARY 14th, 1983 (for details of contents see page 3/6 of Micro-file) VOLUME 19 No. 2 FEBRUARY 1983 CONSTRUCTIONAL PROJECTS BATTERY TO MAINS INVERTER by M. Tooley BA and D, Whitffeld MA, MSc .. .. 22 Standby mains supply for your house or garage TWILIGHT WARNING .. .. .. .. 40 Provides audio/visual indication with reducing light level RADIO BOOSTER by M. Tooley BA and D. Whiffield MA, MSc .. 46 Simple add-on that improves car radio reception ULTIMUM Part 4 .. .. .. .. .. .. .. 56 EPROM programmer card GENERAL FEATURES INTO THE REAL WORLD Part 1 by M. Tooley BA and D. Whitfield MA,MSc .. .. 30 Introduction to interfacing microprocessors SEMICONDUCTOR UPDATE by A. W. Coles .. .. .. 38 Featuring the Am7910, LCSO2, Micro/J 11 PROGRAMMABLE UNIJUNCTION TRANSISTORS by P. Gatehouse .. .. .. 50 A few PUTs are a useful investment INGENUITY UNLIMITED .. .. .. .. .. .. 54 Short-cut to short-detection-Cassette tape timer-Low cost multiple bargraph driver MICROPROMPT .. .. .. .. .. .. .. .. 64 Hardware and software ideas for PE computer projects NEWS AND COMMENT EDITORIAL .. .. .. .. .. .. .. .. .. .. 11 NEWS AND MARKET PLACE 18 Including Points Arising and Countdown SPACEWATCH by Frank W. Hyde .. .. .. .. .. .. .. .. 27 Extra-terrestrial activities chronicled ELECTRONIC HOBBIES FAIR REVIEW .. .. .. .. .. .. .. 28 Off to a good start BAZAAR .. .. .. .. . .. .. .. 36, 48, 52 Free readers' advertisement INDUSTRY NOTEBOOK by Nexus .. .. .. .. .. .. .. .. 39 News and views on the electronics industry PATENTS REVIEW .. .. .. . .. .. .. .. .. .. 42 Noise removal and a headphone warning system SPECIAL OFFER-MULTIMETERS .. .. .. .. .. .. .. 45 PE MICROCONTROLLER: DATA SHEET 1 by M. Tooley BA and D. Whitfield MA, MSc .. 49 SPECIAL OFFER-CASSETTES .. .. .. .. .. .. .. .. 60 STRICTLY INSTRUMENTAL by K. Lenton-Smith .. .. .. .. .. .. 63 Konosuke Matsushita and the SX-U9OP SPECIAL SUPPLEMENT MICRO-FILE by R W. Coles .. .. .. .. .. between pages 38 and 39 Filesheet 4 6502 FRONT COVER: The green Phoenix connectors used on the front cover were kindly loaned by ERMA Ltd OUR MARCH ISSUE WILL BE ON SALE FRIDAY, FEBRUARY 11th, 1983. For details of contents see page 4/6 of Micro-file) VOLUME 19 No. 3 MARCH 1983 CONSTRUCTIONAL PROJECTS ICE WARNING AND LIGHTS REMINDER by P. J. McFarlane .. .. .. 22 Get out of tight corners alive 43 DIGIT FREQUENCY METER by Stephen Ibbs .. .. .. .. .. .. 28 An audio range frequency meter for measuring 0-20kHz CASE ALARM by R. A. Penfold .. .. 36 Part of Circuit Layout Simplified CAR ACCESSORY PSU by M. Tooley BA and D. Whittleld MA MSc .. .. .. .. 46 Provides a negative earth supply of 45,6,75 or 9V ULTIMUM PART 5 by William Edwards 58 ROM Emulator for system development GENERAL FEATURES SEMICONDUCTOR UPDATE by R. W. Coles .. .. .. .. .. .. .. 32 Featuring the MAA 2000, 7114, BU215 NOT SUCH A RUMB DOBOT by L. N. Owen B.Sc .. .. .. .. .. .. 39 Looking at 2nd generation robot technology INTO THE REAL WORLD PART 2 by M. Tooley BA and D. Whitfield MA MSc .. .. .. 50 Digital to Analogue interfacing INGENUITY UNLIMITED .. .. .. .. .. .. .. .. .. 61 Wine heater thermostat-Intruder alarm-Counter circuit-IlL logic probe-Windscreen wiper control-Touch switched speaker muting-Electronic cruise control MICROBUS by D.J.D. .. .. .. .. .. .. .. .. 66 A bi-monthly focus on micros for the home constructor NEWS AND COMMENT EDITORIAL .. .. .. .. .. .. .. .. .. 17 NEWS AND MARKET PLACE 18 Including Points Arising and Countdown SPACEWATCH by Frank W. Hyde .. .. .. .. .. .. .. 21 Extra-terrestrial activities chronicled PE MICROCONTROLLER: DATA SHEET 2 by M. Tooley BA andD. Whitfield MA MSc .. 27 INDUSTRY NOTEBOOK by Nexus 35 News and views on the electronics industry CIRCUIT LAYOUT SIMPLIFIED 36 Featuring a project designed using the GSC Scratch Pad PATENTS REVIEW .. .. .. .. .. .. .. .. .. 45 Loudspeaker diaphragm-Pseudo stereo BAZAAR .. .. .. .. .. .. .. .. .. 48,56 Free readers' advertisements SPECIAL OFFER-CASSETTES .. .. .. .. .. .. .. .. 68 SPECIAL SUPPLEMENT MICRO-FILE by H. W. Coles .. .. .. .. .. .. between pages 38 and 39 Filesheet 5 1802 OUR APRIL ISSUE WILL BE ON SALE FRIDAY, MARCH 11th, 1983 (for details of contents see page 5/6 of Micro-file) VOLUME 19 No. 4 APRIL 1983 CONSTRUCTIONAL PROJECTS BATTERY TESTER by ChrIsLare 22 Provides led. state indication for 1.5, 3, 4.5, 6, 9 and 12V batteries DIGITTALKER by A.Wiggin 28 LPC speech system WIPER DELAY by M. Tooley BA and D. Whitfield MA MSc .. 36 Car rear screen wiper variable speed control SWITCHED CAPACITOR PHASER by R. Penfold .. .. .. 40 Phaser sound effects based upon the twin filter MF10 CN chip ULTIMUM Part 6 by William Edwards .. .. .. .. 56 Phoneme speech card I.F. FILTER/AMPLIFIER by R. F Millington .. .. .. .. .. 63 Improved filter design for the PE Ranger GENERAL FEATURES INTO THE REAL WORLD Part 3 by M. Tooley and D. Whitfield .. .. 48 Setting up and using the A to D and D to A converters SEMICONDUCTOR UPDATE by R. W. Coles .. .. .. .. 55 Swansong INGENUITY UNLIMITED .. .. .. .. .. 60 Constant current voltage source-Lighting effects unit-Versatile controller MICROPROMPT .. .. .. 65 Hardware and software ideas for PE computer projects NEWS AND COMMENT EDITORIAL .. .. .. .. .. .. .. .. .. 17 NEWS AND MARKET PLACE 18 Including Countdown BAZAAR .. .. .. .. .. .. .. .. .. 25, 33, 64 Free readers' advertisements INDUSTRY NOTEBOOK by Nexus .. .. .. .. .. .. .. 27 News and views on the electronics industry PATENTS REVIEW .. .. .. .. .. .. .. 34 Back to Tesla and speaker improvements SPECIALOFFER-CASSETTES .. .. .. .. .. .. 43 SPACEWATCH by Frank W. Hyde .. .. .. .. .. .. .. 44 Extra-terrestrial activities chronicled PE MICROCONTROLLER: DATA SHEET 3 by M. Tooley BA and D. Whitfield MA MSc 47 SPECIAL SUPPLEMENT MICRO-FILE by A. W. Coles .. .. .. .. .. between pages 38 and 39 Filesheet 6 6809 OUR MAY ISSUE WILL BE ON SALE FRIDAY, APRIL 8th. 1983 (for details of contents see page 6/6 of Micro-file) VOLUME 19 No. 5 MAY 1983 CONSTRUCTIONAL PROJECTS DIGIT TALKER by A. Wiggin .. .. . .. .. 21 Interface system AUTOMOBILE TEST SET by M. Tooley BA and D. Whitfield MA MSc .. .. .. .. 34 Offers a test facility for car electrics ZEAkER by David Buckley . .. .. .. .. .. .. .. .. 42 Low cost computer controlled robot MAINS WATCHDOG by Chris Lare .. .. .. .. .. .. .. 50 Audio/visual warning system for mains failures PERSONAL STEREO AMPLIFIER by A. A. Penfold . .. .. .. .. .. 55 General purpose 6 watts per channel system ULTIMUM by William Edwards .. .. .. .. .. .. . . . 70 Three chip sound generator GENERAL FEATURES SEMICONDUCTOR CIRCUITS by Tom Gaskell BA(Hons) .. .. .. .. .. 26 Combination lock (LS7225): 3 tone chime (SABO600) MICROBUS by DJD 48 A bi-monthly focus on micros for the home constructor INTO THE REAL WORLD by M. Tooley BA and O. Whitfield MA MSc .. .. .. .. 62 Conclusion of series NEWS AND COMMENT EDITORIAL ,. .. .. .. .. .. .. .. .. .. 15 NEWS AND MARKET PLACE .. .. .. .. .. .. .. .. .. 16 Including Countdown BAZAAR .. .. .. .. .. .. .. .. .. 25,30,39, 59 Free readers advertisements SPACEWATCH by Frank W. Hyde .. .. .. .. .. .. .. .. 32 Extra-terrestrial activities chronicled INDUSTRY NOTEBOOK by Nexus .. .. .. .. .. .. .. .. 40 News and views on the electronics industry SPECIAL OFFER-CASSETTES .. .. .. .. .. .. .. .. 53 PATENTS REVIEW .. .. .. .. .. .. .. .. .. 60 TV Warning and Automatic Cut-Out MICROCONTROLLER DATA SHEET 4 by M. Tooley BA and D. Whitfield MA MSc .. .. 69 We regret that due to circumstances beyond our control we are unable to publish Micro-file this month OUR JUNE ISSUE WILL BE ON SALE FRIDAY, MAY 6th, 1983 (for details of contents see page 31) VOLUME 19 No. 6 JUNE 1983 CONSTRUCTIONAL PROJECTS PROGRAM CONDITIONER by Ian Hickman 20 Obviates problems when copying computer programs ROCKTON E by 0. Head BSc(Hons) and P. D'Lemos BSc $ 26 A versatile frequency generator for setting up sound systems ZEAKER Part 2 by David Buckley 36 Construction and programming PERCUSSION MICROSYNTH Pan 1 by A. A. Bradford 50 A broad voiced drum kit AUTOMOBILE TEST SET Pan 2 by M. Tooley BA and D. Whitfield MA MSc 60 Construction and use ULTIMUM Pan 8 by William Edwards 68 Port Card GENERAL FEATURES FUSION: TOWARDS REALITY by Mike Abbott 30 Europe's Tokamak experiment SEMICONDUCTOR CIRCUITS by Tom Gaskell BA (hons) 44 High quality audio preamplifier (HA 12017) VERNON TRENT AT LARGE 49 MICROPROMPT 57 Hardware and software ideas for PE computer projects INGENUITY UNLIMITED 65 Car intruder alarm-PWM motor controller with centre off NEWS AND COMMENT EDITORIAL . 15 NEWS ANDMARKET PLACE 16 Including Countdown PATENTS REVIEW 25 Theft detector SPECIAL OFFER-CASSETTES 34 SPACEWATCH by Frank W. Hyde 42 Extra-terrestrial activities chronicled INDUSTRY NOTEBOOK by Nexus 43 News and views on the electronics industry BAZAAR 46. 63 Free readers advertisements READOUT 56 SPECIAL SUPPLEMENT MICRO-FILE by A. W. Coles between pages 42 and 43 Filesheet 7 9900 OUR JULY ISSUE WILL BE ON SALE FRIDAY, JUNE 3rd, 1983 (for details of contents see page 41) VOLUME 19 No. 7 JULY 1983 CONSTRUCTIONAL PROJECTS ULTRALIGHT by G. Davies .. .. 20 Automatic light and alarm system PERCUSSION MICROSYNTH Part 2 by A. A. Bradford 26 Construction and setting up TIMER PROJECTS by Stephen Ibbs 44 2 Digit Down Counter 45 4 Digit LCD Up Counter 48 4 Digit LED Down Counter/Controller 50 4 Digit LCD Down Counter/Controller 54 ULTIMUM Part 9 .. 62 Analogue card GENERAL FEATURES FAIRLIGHT MUSIC COMPUTER by Ray Hammond .. .. 32 An in-depth look at this instrument SEMICONDUCTOR CIRCUITS by Tom Gaskell BA(Hons) .. .. 40 Programmable Crystal Oscillator (PX0-600) VERNON TRENT AT LARGE 61 MICROBUS by D.J.D. .. .. .. .. 69 A bi-monthly focus on micro's for the home constructor NEWS AND COMMENT EDITORIAL .. .. .. 15 NEWS ANO MARKET PLACE .. .. .. .. 16 Including Countdown and Points Arising SPACEWATCH by Frank W. Hyde .. .. 24 E xtra-terrestrial activities chronicled PATENTS REVIEW .. .. .. .. 38 US Disc Alternative SPECIAL OFFER-CASSETTES .. 38 BAZAAR .. .. .. 58, 65, 70 Free readers advertisements INDUSTRY NOTEBOOK by Nexus 66 News and views on the electronics industry SPECIAL SUPPLEMENT MICRO-FILE by R. W. Coles between pages 38 and 39 Filesheet 88086 OUR AUGUST ISSUE WILL BE ON SALE FRIDAY, JULY 1st, 1983 (for details of contents see page 39) The sundiaI and hourglass shown on the cover were supplied by Seaway Chandlery. Poole. VOLUME 19 No. 8 AUGUST 1983 CONSTRUCTIONAL PROJECTS SOLAR POWERED PROJECTS by R.A. Penfold 22 M/W Radio 22 Soil Moisture Meter 25 Thermometer 26 Inebriation Detector 27 Continuity Tester 29 Transistor Checker 30 LOGIC ANALYSER by D. Mandelzweig 46 Stores 1K or 8-bit words at up to 5MHz GENERAL FEATURES ROBOT VISION by Geoff Mortimer and Liz Newbury 34 The latest systems explained VERNON TRENT AT LARGE 38 SEMICONDUCTOR CIRCUITS by Tom Gaskell BA (Hons) 40 Voltage converter (ICL 7660) DEGLITCHING TECHNIQUES by L. N. Owen 58 Defining and overcoming unwelcome transients MICROPROMPT 60 Hardware and software ideas for PE computer projects NEWS AND COMMENT EDITORIAL 15 NEWS AND MARKET PLACE 16 Including Countdown SPECIAL OFFER-CASSErTTES 32 SPACEWATCH by Frank W. Hyde 33 Extra-terrestrial activities chronicled BAZAAR 42,72 Free readers' advertisements INDUSTRY NOTEBOOK by Nexus 45 News and views on the electronics industry PATENTS REVIEW 57 Infra-red link-Stereo TV STRICTLY INSTRUMENTAL by K. Lenton-Smith 65 Yamaha pianos READOUT 66 INGENUITY UNLIMITED 67 Transistor analyser-Electronic die-Car lights on reminder-Micro multiplexed display Roger 'bleep bleep'-Steam whistle-Ni-Cad battery charger-High Z input for voltmeters OVERSEAS SUBSCRIPTION AGENTS 72 SPECIAL SUPPLEMENT MICRO-FILE byR. W. Coles between pages 38 and 39 Filesheet 9 68000 OUR SEPTEMBER ISSUE WILL BE ON SALE FRIDAY, AUGUST 5th, 1983 (for details of contents see page 39) VOLUME 19 No. 9 SEPTEMBER 1983 CONSTRUCTIONAL PROJECTS 555/141 TESTER by Stephen Ibbs 22 Function tester for two well known devices SOFT ERROR DETECTION AND CORRECTION BOARD by A. Trebar .. .. .. 32 A more reliable memory system for your computer GUITAR ACTIVE TONE CONTROL by A. Scragg .. .. .. .. .. 39 Provides crisper sound and larger tonal range GROUND COMMUNICATION SYSTEM by R. A. Penfold .. .. .. .. .. 42 A battery operated transceiver for subterranean communications LOGIC ANALYSER Part 2 by D.Mandelzweig .. .. .. .. .. .. 52 Construction details GENERAL FEATURES VERNON TRENT AT LARGE 24 SEMICONDUCTOR CIRCUITS by Tom Gaskell BA (Hons) .. .. .. .. .. 26 Light spot driver (UAAI 70) GETTING TO GRIPS WITH MAC by Pat Hawker .. .. .. .. .. 46 UK TV satellite system explained INGENUITY UNLIMITED .. .. .. .. .. .. .. .. 62 Proportional a.c. control without AFI-General purpose timer-Over voltage protectionPseudo telephone ringer-Automatic ni-cad charger-Sound chaser-Slide projector dimmerIntruder alarm with camera unit-Shop bell delay MICRO-BUS by D.J.D. .. .. .. .. .. .. .. .. .. 70 A bi-monthly focus on micro's for the home constructor NEWS AND COMMENT EDITORIAL .. .. .. .. .. .. .. .. .. .. .. 15 NEWS AND MARKET PLACE 16 Including countdown BAZAAR-USED COMPUTER AND EQUIPMENT BARGAINS .. .. .. 28,60 Free readers' advertisements INDUSTRY NOTEBOOK by Nexus .. .. .. .. .. .. .. .. 31 News and views on the electronics industry SPACEWATCH by Frank W. Hyde .. .. .. .. .. .. .. .. 61 Extra-terrestrial activities chronicled OVERSEAS SUBSCRIPTION AGENTS 66 PATENTS REVIEW .. .. .. .. .. .. .. .. .. 69 Power-cut reserve-Sound switch-Wide screen TV SPECIAL SUPPLEMENT MICRO-FILE by A. W. Coles .. .. .. .. .. between pages 38 and 39 Filesheet 10 Z8000 OUR OCTOBER ISSUE WILL BE ON SALE FRIDAY, SEPTEMBER 2nd, 1983 (for details of contents see page 10/6 of Micro-file) (October, November indexes missing). VOLUME 19 No. 12 DECEMBER 1983 CONSTRUCTIONAL PROJECTS GAS SAVER by Mike Abbott 22 Electronic thermostat for gas central heating ZAP GUN 32 A fun gun featuring a flash tube and sound effects EXPANDING THE VIC 20 Part Three by Sam Withey 54 Low voltage Driver Board LOGIC ANALYSER Part 5 by D. Mandelzweig MSc Eng 58 CMOS input option GENERAL FEATURES DINORWIG by Brian Butler 38 The CEGB's Pumped Storage Power Station INTRODUCTION TO DIGITAL ELECTRONICS by M. Tooley BA and D. Whitfield MA MSc CEng MIEE 44 Part 3 of our electronics course VERNON TRENT AT LARGE 53 An interview with Evan Steadman MICRO-BUS 61 A monthly focus on micro's for the home constructor SEMICONDUCTOR CIRCUITS by Tom Gaskell BA(Hons) 62 Logic controlled dual regulator (LT 1005 CT) NEWS AND COMMENT EDITORIAL 15 NEWS AND MARKET PLACE 16 Including Silicon News Corner INDUSTRY NOTEBOOK by Nexus 18 News and views on the electronics industry PATENTS REVIEW 21 Instant digital disc-US broadcast battle SPECIAL OFFER-CASSETTES 31 READOUT 36 SPACEWATCH by Frank W. Hyde 51 Extra-terrestrial activities chronicled SPECIAL OFFER-DIARY 57 BAZAAR 60,64 Free readers' advertisements INDEX FOR VOLUME 19 66 Complete index for PE 1983 DUE TO LACK OF SPACE PART TWO OF SIMPLE SPEECH AND MICRO-FILE HAVE BEEN HELD OVER TILL NEXT MONTH OUR JANUARY ISSUE WILL BE ON SALE FRIDAY, DECEMBER 2nd, 1983 (for details of contents see page 65) |