Vol.9, No.3; March 1996
Contents
DISCOVER HOW THESE IMPORTANT
TEST INSTRUMENTS WORK – PAGE 12
FEATURES
4 Traction Control: The Latest In Car Technology
Traction control offers important new advances in vehicle safety and dynamics and
some manufacturers already have systems that work in conjunction with ABS. We
take a look at how it works – by Julian Edgar
12 Cathode Ray Oscilloscopes, Pt.1
Learn how these important items of test equipment work! This first article in the
series looks at analog oscilloscopes and describes how they operate – by Bryan
Maher
PROJECTS TO BUILD
22 Programmable Electronic Ignition System For Cars
Program your own ignition advance curve with this simple system. It can be easily
added to the “Silicon Chip” High Energy Ignition System – by Anthony Nixon
32 A Zener Diode Tester For Your DMM
Plug this simple adapter into your DMM to directly read the values of zener diodes.
It covers the range from 2.2V to 100V – by John Clarke
42 Automatic Level Control For PA Systems
Keep the volume from your PA system at a constant level with this easy-to-build
system and forget about riding the gain control – by John Clarke
60 A 20ms Delay For Surround Sound Decoders
Add this to your surround sound decoder for more realistic rear channel sound. It
uses just one IC and a handful of other parts – by John Clarke
84 Build A Simple Battery Tester For Around $5
The recipe is simple: take one green tester strip from a Mallory® battery pack, add a
battery clip, a case, and a sprinkling of nuts and bolts – by John Clarke
PROGRAMMABLE IGNITION SYSTEM
FOR CARS – PAGE 22
ZENER DIODE
TESTER
PLUGS INTO
YOUR DMM
– PAGE 32
SPECIAL COLUMNS
48 Serviceman’s Log
Sound reasons for confusion – by the TV Serviceman
54 Remote Control
Multi-channel radio control transmitter; Pt.2 – by Bob Young
74 Computer Bits
Electronic organisers & your PC – by Geoff Cohen
77 Satellite Watch
The latest in satellite TV reception – by Garry Cratt
86 Vintage Radio
A console with a difference – by John Hill
AUTOMATIC LEVEL CONTROL FOR
PA SYSTEMS – PAGE 42
DEPARTMENTS
2 Publisher’s Letter
3 Mailbag
40 Circuit Notebook
63 Order Form
64 Bookshelf
80 Product Showcase
92 Ask Silicon Chip
95 Market Centre
96 Advertising Index
March 1996 1