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)


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