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Vol.8, No.8; August 1995
Contents
FEATURES
4 Electronic Diesel Engine Management
Electronic technology is greatly improving the performance of
diesel engines. Here’s a look at the electronic control system
used by Detroit Diesel on truck engines – by Julian Edgar
14 133MHz Pentium Processor Now Available
FUEL INJECTOR MONITOR FOR CARS – PAGE 24
The Pentium is about to become the mainstream processor in
PCs. We take a look at its main features & give some details on
Intel’s latest 133MHz Pentium processor
PROJECTS TO BUILD
18 Vifa JV-60 2-Way Bass Reflex Loudspeaker System
These new 60-litre systems use two 170mm woofers & a tweeter
with a ferro-fluid voice coil – by Leo Simpson
24 A Fuel Injector Monitor For Cars
This circuit monitors the fuel injectors & displays a reading that’s
directly proportional to the injector opening time – by Rick Walters
30 A Gain-Controlled Microphone Preamp
Use it with PA systems to maintain a constant level – by John Clarke
54 Audio Lab: A PC-Controlled Audio Test Instrument
Monitors frequency, resistance, capacitance, and AC & DC voltage; and
performs frequency response plots – by Roger Kent
60 Build The Mighty-Mite Powered Loudspeaker
It uses a miniature IC & delivers an output of 1W – by John Clarke
75 Build A 6-12V Alarm Screamer Module
It comes as a kit & puts out 110dB of noise
SPECIAL COLUMNS
40 Serviceman’s Log
It took a little longer than usual – by the TV Serviceman
VIFA 60-LITRE 2-WAY BASS REFLEX
LOUDSPEAKER SYSTEM– PAGE 18
72 Computer Bits
An easy way to identify IDE hard disc drive parameters – by Geoff Cohen
80 Vintage Radio
A couple of odd radio repairs – by John Hill
DEPARTMENTS
2 Publisher’s Letter
37 Mailbag
38 Circuit Notebook
53 Bookshelf
59 Order Form
86 Product Showcase
90 Ask Silicon Chip
94 Market Centre
96 Advertising Index
94 Notes & Errata
PC-CONTROLLED AUDIO TEST
INSTRUMENT TO BUILD – PAGE 54
August 1995 1
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