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This is only a preview of the September 2007 issue of Silicon Chip. You can view 35 of the 104 pages in the full issue, including the advertisments. For full access, purchase the issue for $10.00 or subscribe for access to the latest issues. Articles in this series:
Items relevant to "Spectacular Bike-Wheel POV Display":
Items relevant to "A Fast Charger For NiMH & Nicad Batteries":
Items relevant to "Simple Data-Logging Weather Station, Pt.1":
Items relevant to "Building The 20W Stereo Class-A Amplifier; Pt.5":
Purchase a printed copy of this issue for $10.00. |
C o ntents
Vol.20, No.9; September 2007
SILICON
CHIP
www.siliconchip.com.au
The Art Of
Long-Distance
WiFi – Page 8.
Features
8 The Art Of Long-Distance WiFi
Want to create a WiFi (wireless network) link of 10km or more? Here’s how to
go about it – by Rob Clark, Terry Porter & Robyn Edwards
13 Review: New Wireless PA System From Altronics
Forget the hassle of running cables to your PA speakers. This new PA system
from Altronics is “wire less” – by Ross Tester
20 How To Cut Your Greenhouse Emissions; Pt.3
Are alternative energy sources and carbon offset schemes all they are
cracked up to be? – by Peter Seligman, PhD
Pro jects To Build
Spectacular Bike-Wheel POV
Display–
Display
– Page 26.
26 Spectacular Bike-Wheel POV Display
What’s POV? Well, it stands for “Persistence Of Vision” and this simple circuit
is software-controlled to give spectacular displays – by Ian Paterson
34 A Fast Charger For NiMH & Nicad Batteries
Easy-to-build unit can fast-charge up to 15 identical NiMH or Nicad batteries &
can be configured to suit any cell capacity. Built-in safeguards are included to
prevent overcharging – by John Clarke
58 Simple Data-Logging Weather Station, Pt.1
It records rainfall & temperature, is cheap & easy to build, operates completely
unattended & runs for years on a set of AA batteries – by Glenn Pure
66 Building The 20W Stereo Class-A Amplifier; Pt.5
Fast Charger For NiMH & Nicad
Batteries – Page 34.
We described all the modules in the May-August 2007 issues. Here’s how to
assemble them into a precision custom-made steel chassis – by Greg Swain
Special Columns
44 Serviceman’s Log
The blind leading the blind – by the TV Serviceman
77 Circuit Notebook
(1) Alarm Clock With Day Selector; (2) DC-DC Converter Has Two Outputs;
(3) IR LED Used As Remote Control Checker; (4) Battery Saver Under Micro
Control; (5) Musical Doorbell Based On A Toy Piano; (6) Phone Call Alert For
The Partially Deaf
90 Vintage Radio
The HRSA’s 25th Anniversary Equipment Display – by Rodney Champness
Simple Data-Logging Weather
Station – Page 58.
Departments
2
3
57
86
Publisher’s Letter
Mailbag
Order Form
Product Showcase
siliconchip.com.au
98 Ask Silicon Chip
100 Notes & errata
101 Market Centre
Building The 20W Stereo Class-A
Amplifier – Page 66.
September 2007 1
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