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HiFi Review: Marantz CD6003 CD Player
17 June 2011
Marantz is one of the few mainstream hifi manufacturers still making dedicated CD players. In fact, they make quite a few, ranging in price from affordable to very expensive. We take a look at a machine which is somewhere in-between, offering pitch control and a USB input so MP3 and other files can be played.
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USB Stereo Recording & Playback Interface
13 June 2011
Now you can use your laptop PC to make high-quality stereo audio recordings with professional standard balanced microphones. This interface unit lets you make recordings at sampling rates up to 48 kilosamples/second and provides high-quality stereo analog line outputs for playback or monitoring. There's also an S/PDIF digital audio input for recording and an S/PDIF digital audio output for playback.
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Circuit Notebook
11 June 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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Rescuing Electronic Gear After The Flood
09 June 2011
Not long ago, Queensland endured some of the worst
flooding on record. During this time I was offered the opportunity to recover some radio receivers that
would otherwise have ended up as landfill.
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20A12/24V DC Motor Speed Controller Mk.2
07 June 2011
This gutsy little speed controller has a wide range of applications and is simple to build and use. There are no software settings to fiddle with but it does have some really useful features such as low-battery protection, soft start and adjustable pulse frequency. It can run from 12V or 24V batteries at currents up to 20A.
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The FutureWave Energy Saver
03 June 2011
During the past few years, SILICON CHIP has exposed some decidedly "shonky" power-saving devices. So it gives
us great pleasure in "exposing" another power-saving
device . . . one that actually lives up to its claims.
The FutureWave Energy Saver WILL save energy and therefore money. And we have the test figures to prove it.
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Phone Line Polarity Checker
24 May 2011
Do you suspect your broadband speed (DSL) is slower than it should be? It could be as simple as incorrect polarity in your phone wall socket. Build this very cheap, very simple device to find out whether you need to change your wiring!
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Circuit Notebook
18 May 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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12V 100W Converter With Adjustable 15-35V DC Output
16 May 2011
Did you build the 12/24V 3-stage MPPT solar charge controller published in the February 2011 issue? Then you will probably want this companion 12V 100W inverter as well. It will power laptops and other devices which require a DC voltage between 15V & 35V.
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