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Issue 273 << Issue 272 | Issue 274 >>
Publisher's Letter

1 Jun, 2011

The FutureWave Energy Saver

3 Jun, 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.

Serviceman's Log

5 Jun, 2011

While we prefer satisfied customers, every now and then we strike someone who, try as we might, we just can't seem to please. I don't let it get to me but for those new to service work or inexperienced at dealing with customers, an unreasonable client can cause sleepless nights.

20A12/24V DC Motor Speed Controller Mk.2

7 Jun, 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.

Rescuing Electronic Gear After The Flood

9 Jun, 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.

Circuit Notebook

11 Jun, 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.

USB Stereo Recording & Playback Interface

13 Jun, 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.

Ask Silicon Chip

15 Jun, 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.

HiFi Review: Marantz CD6003 CD Player

17 Jun, 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.

VersaTimer/Switch With Self-Latching Relay

19 Jun, 2011

Use it as a micropower switch, programmable timer and/or 12V battery protector

Vintage Radio

21 Jun, 2011

An insight into the manufacture of quality valve radios in the USA nearly 100 years ago.

A Handy USB Breakout Box For Project Development

23 Jun, 2011

You can build it in 10 minutes and for less than $15

Mailbag

25 Jun, 2011

Letters and emails should contain complete name, address and daytime phone number. Letters to the Editor are submitted on the condition that Silicon Chip Publications Pty Ltd may edit and has the right to reproduce in electronic form and communicate these letters. This also applies to submissions to "Ask SILICON CHIP" and "Circuit Notebook".

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