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Review: Agilent's InfiniiVision 4-Channel Oscilloscopes
12 April 2011
The new Agilent InfiniiVision DSO/MSO 2000X and 3000X series oscilloscopes will certainly stir up the scope market. They combine high performance and a wide screen format with ease of use something that is not always a feature of today's digital scopes.
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The Rise & Fall Of Electronics Today International
08 April 2011
40 years ago this month, a brash new electronics magazine burst onto the scene in Australia: Electronics Today - later called Electronics Today International or simply ETI. It really caused a stir and provided stiff competition to the long-established "bible", Electronics Australia.
Here is the story of how it began,
as told by ETI's founding editor,
Collyn Rivers.
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Fixing Transformer Buzz In The Class-A Amplifier
02 April 2011
Since the 20W Stereo Class-A amplifier was published in 2007, it has been widely acclaimed for its sound quality. But there has been a consistent niggle experienced by quite a few constructors low level buzz from the power transformer. We recently took a look at this problem and have come up with a cure.
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Microphone To Neck Loop Coupler For Hearing Aids
24 March 2011
Hearing-aid wearers often have difficulty understanding conversations in noisy environments, especially if they have
switched their personal hearing aid from microphone mode to T-coil mode. This projects solves that problem.
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12V 20-120W Solar Panel Simulator
22 March 2011
How do you test or develop a solar charge controller such as the unit described in SILICON CHIP last month? You could use a solar panel but then you are at the whim of the weather and time of day. Also you would need several panels of different sizes to test it properly. This device solves all those problems.
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Mains Moderator: Stepping Down The Volts
18 March 2011
Do you have excessive mains voltage at your place? In some parts of Australia the mains voltage can be above 250VAC and that can spell early death for imported appliances rated to work on only 220VAC. In this article we show you how to reduce the mains voltage to a safe level for your equipment.
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Salvage It! - A Vacuum Pump From Junk
14 March 2011
Every young techie needs a vacuum pump. They rate alongside the air compressor, multimeter and soldering iron as one of the most useful tools to take their place in the arsenal. This guide will show you how to make a serious vacuum pump for next-to-nothing. Add a vacuum tank for much the same price and you are loaded for bear.
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Circuit Notebook
12 March 2011
Interesting circuit ideas which we have checked but not built and tested. Contributions from
readers are welcome and will be paid for at standard rates.
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Community TV Station TVS
08 March 2011
If you watch digital TV in mainland capitals, you may have come across a "community" channel. In Sydney it's a station called TVS, which has a range of interesting programs, quite different to those on main-stream stations. So what is TVS and who are the people behind it?
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