This is only a preview of the July 2012 issue of Silicon Chip. You can view 27 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. Items relevant to "Soft Starter For Power Tools":
Items relevant to "Wideband Oxygen Sensor Controller Mk.2, Pt.2":
Items relevant to "6-Decade Capacitance Substitution Box":
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Contents
SILICON
CHIP
www.siliconchip.com.au
Vol.25, No.7; July 2012
Features
12 Peter Olsen & His Flashing School Lights
They use PICAXE microcontrollers and they’re a lot cheaper than the flashing
lights installed by the RTA (now the RMS) – by Ross Tester
16 The Square Kilometre Array: Australia Misses Out
The Square Kilometre Array involved a bidding contest to build a $2.5 billion
radio telescope. Australia (mostly) lost and South Africa won – by Geoff Graham
Soft Starter For Power
Tools – Page 22.
22.
48 The Freetronics “Leostick” USB-Capable Microcontroller
This 8-bit microcontroller board is the size of a flash drive, is compatible with
the Arduino system and plugs straight into a USB port – by Nicholas Vinen
76 Modifying CD-ROM Motors For High Power Operation
It’s easy to convert the flea-power motors from CD/DVD-ROM drives to highpower operation for model aircraft or other uses – by Dave Thompson
Pro jects To Build
22 Soft Starter For Power Tools
Do your power tools kick like a mule when you squeeze the trigger? Build this
project and eliminate starting kick-back – by Nicholas Vinen
30 Wideband Oxygen Sensor Controller Mk.2, Pt.2
Building The Wideband Oxygen
Sensor Controller Mk.2 – Page 30.
Second article describes the circuit for the LED display unit and gives the full
construction details – by John Clarke
64 10A DCC Booster For Model Railways
Give your model train layout some real grunt with this unit. It lets you run lots of
locos and peripherals such as sound effects and lighting – by Jeff Monegal
84 6-Decade Capacitance Substitution Box
Need to experiment with capacitance values? This capacitance decade box
makes it easy to find the right value for your circuit – by Nicholas Vinen
Special Columns
10A DCC Booster For
Model Railways – Page 64.
42 Serviceman’s Log
The solar panel system that almost caught fire
58 Circuit Notebook
(1) PICAXE-Based Wireless Electricity Monitor; (2) A Really Simple Metal
Detector; (3) Modifying An Urn To Save Power; (4) Capacity Test Circuit For
Rechargeable Cells; (5) Simple Circuit For Checking IF Coil Frequency
6-Decade Capacitance
Substitution Box –
Page 84.
90 Vintage Radio
The AWA 157P 7-transistor portable radio – by Rodney Champness
Departments
2
4
57
97
Publisher’s Letter
Mailbag
Product Showcase
Order Form
siliconchip.com.au
98 Ask Silicon Chip
103 Market Centre
104 Notes & Errata
July 2012 1
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