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Contents
Vol.19, No.12; December 2006
SILICON
CHIP
www.siliconchip.com.au
Features
8 The Holden Lightship & Its 2321cm Video Screen
It’s huge and it’s flying to a sky near you – by Ross Tester
12 What’s Happened To Electronic Advances In Cars?
It’s gadgets instead of efficiency and innovative engineering – by Julian Edgar
17 Excellence In Education Technology Awards
And the winners are . . .
Cordless Power Tool
Charger Controller – Page 32.
24 Bringing A Dead Cordless Drill Back To Life
Don’t throw that dead cordless drill in the bin. Here’s how to repack the battery
with fresh cells – by Ross Tester
Pro jects To Build
Heartbeat CPR
Training Beeper –
Page 66.
32 Cordless Power Tool Charger Controller
Just repacked your cordless drill battery? Build this Charger Controller &
never cook a Nicad battery pack again – by John Clarke
44 Build A Radar Speed Gun, Pt.2
Second article has all the construction details & gives the check-out
procedure – by Jim Rowe
66 A Heartbeat CPR Training Beeper
It fits in the palm of your hand and provides audible timing beats for correct
CPR – by Jim Rowe & Ross Tester
72 Super Speedo Corrector
Swapped out the diff or changed gearbox ratios? This easy-to-build circuit will
get your speedo reading accurately again – by John Clarke & Julian Edgar
80 12/24V Auxiliary Battery Controller
An auxiliary battery is a great idea for a campervan or 4WD if you’re going bush.
Build this device & avoid flattening your main battery – by Branko Justic
88 PICAXE Net Server, Pt.4
Environmental temperature control via the Internet – by Clive Seager
Special Columns
39 Circuit Notebook
(1) Mains Zero-Crossing Recovery; (2) Improved Vibrating Battery Tester; (3)
CB Radio Beeper With Selectable Tones; (4) Remote Watering System
61 Serviceman’s Log
The 50-year-old AWA TV set – by the TV Serviceman
Calibrate Your Speedo With This
Speedo Corrector – Page 72.
93 Salvage It!
The good bits in microwave ovens – by Julian Edgar
98 Vintage Radio
The AWA 976A hybrid car radio – by Rodney Champness
Departments
2
4
78
103
Publisher’s Letter
Mailbag
Product Showcase
Order Form
siliconchip.com.au
104 Ask Silicon Chip
107 Notes & Errata
110 Market Centre
12/24V Auxiliary
Battery Controller – Page 80.
December 2006 1
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