Contents
Vol.10, No.12; December 1997
FEATURES
4 A Heart Transplant For An Aging Computer
Take one tired old 486 then add a new motherboard, a new graphics card
and a go-fast 200MHz K6 processor – by Ross Tester
18 Understanding Electric Lighting; Pt.2
The development of the incandescent lamp and the search for the perfect
filament material – by Julian Edgar
92 Index To Volume 10
All the articles, projects and columns for 1997
PROJECTS TO BUILD
A Heart Transplant For An Aging
Computer – Page 4
24 Build A Speed Alarm For Your Car
Licence looking a bit dodgey? This speed alarm will help keep you within
the legal limits – by John Clarke
40 A 2-Axis Robot with Gripper
At last! – a really simple robot that’s easy to build. This one comes as a kit
and you drive it from the serial port of your PC – by Graeme Matthewson
54 Loudness Control For Car Hifi Systems
Simple circuit boosts the highs and lows so that you don’t have to wind the
wick up so far – by Rick Walters
60 Stepper Motor Driver With Onboard Buffer
This new design stores the instructions for up to 63 revolutions and can be
set for forward or bidirectional stepping – by Rick Walters
Build A Speed Alarm For Your
Car – Page 24
84 Power Supply For Stepper Motor Cards
Versatile design provides fixed +5V, +12V and +18V supply rails and is
easy to build – by Rick Walters
SPECIAL COLUMNS
53 Satellite Watch
News and updates on satellite TV – by Garry Cratt
68 Serviceman’s Log
Encounters with a notebook PC – by the TV Serviceman
Loudness Control For Car
Hifi Systems – Page 54
76 Radio Control
How servo pulses are transmitted – by Bob Young
80 Vintage Radio
Restoring a sick Radiola – by John Hill
DEPARTMENTS
2 Publisher’s Letter
38 Circuit Notebook
72 Product Showcase
75 Order Form
89 Ask Silicon Chip
95 Market Centre
96 Advertising Index
Stepper Motor Driver With Onboard Buffer – Page 60
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