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Issue 274 << Issue 273 | Issue 275 >>
Publisher's Letter

1 Jul, 2011

Australia Hears... And So Do I

7 Jul, 2011

Not too long ago we heard of an Australian company offering high performance digital hearing aids, based on new technology developed in Australia, at a fraction of the cost of other aids. I was intrigued - it's been a subject close to my heart ears for decades! Were they any good? Were they value for money? Did they work? And what is this latest technology in hearing aids, anyway? SILICON CHIP likes to look at electronics that are slightly out of the ordinary!

Ask Silicon Chip

8 Jul, 2011

Got a technical problem? Can't understand a piece of jargon or some technical principle? Drop us a line and we'll answer your question. Write to: Ask Silicon Chip, PO Box 139, Collaroy Beach, NSW 2097 or send an email to

Could There Be A SIM-LEI Electric Car In Your Future?

9 Jul, 2011

The evolution of electric cars: Could There Be A SIM-LEI Electric Car In Your Future?

Serviceman's Log

10 Jul, 2011

Restarting after the earthquake

Ultra-LD Mk.3 200W Amplifier Module

11 Jul, 2011

Upgraded design has even lower distortion!

Vintage Radio

13 Jul, 2011

The Hotpoint Bandmaster J35DE console radio

A Look At Amplifier Stability & Compensation

15 Jul, 2011

Elsewhere in this issue, we present the updated Ultra-LD Mk.3 Audio Power Amplifier Module. It has a new frequency compensation arrangement which helps it achieve even lower distortion than the Mk.2 version. In this article, we explain why amplifier frequency compensation is necessary and how it works.

Circuit Notebook

17 Jul, 2011

Interesting circuit ideas which we have checked but not built and tested. Contributions will be paid for at standard rates. All submissions should include full name, address & phone number.

A Portable Lightning Detector

19 Jul, 2011

This little device could save your life...

Control Your World Using Linux

21 Jul, 2011

Microcontrollers are becoming more powerful and sophisticated, to the point where they are challenging the supremacy of the PC. On the other hand, PCs running Linux are quite open and accessible to the experimenter. Yes, your computer can control your air-conditioning and lights and this article will show you how.

Build A Voice-Activated Relay (VOX)

23 Jul, 2011

Triggers devices on and off with sound.

Rudder Position Indicator For Power Boats

23 Jul, 2011

Part 1


25 Jul, 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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