4 Apr, 2005

5 Apr, 2005

Lightning can cause all sorts of damage to a TV set and fixing the problems is sometimes a complicated process. It gets even more complicated when you have to reprogram the EEPROM as well.

8 Apr, 2005

10 Apr, 2005

This Bass Extender circuit can give you as much as an extra octave of bass response from your existing hifi speakers, as long as you are not running them near full power.

12 Apr, 2005

Want to be able to dim lights in, say, a model rail layout? Or what about varying the speed of a low-powered motor or regulating the voltage going to a bike headlight, so that its brightness stays the same as the battery voltage falls? It's all possible for less than $5.00.

14 Apr, 2005

Did you build the SMS Controller published in the October & November 2004 issues? The universal nature of the design means that it can be used in a huge variety of applications. As a result, external interface circuits will sometimes be required. Here are three handy add-ons that we've devised after reading a lot of your emails!

16 Apr, 2005

Because of its modular construction, our new Electronic Scoreboard is easy to build. This month, we describe the assembly of the Control Console and the main control board in the display unit.

18 Apr, 2005

It's not often that I come across an Australian-made set for which I have no information. Made by Astor, the 32V DC Monarch D671/32 falls into that category and may have been a pre-production model.

20 Apr, 2005

This latest in-your-palm tester from Peak will reliably check all thyristors and Triacs that you are likely to encounter. Just connect the mini-hook leads (in any order) and press "test"!

22 Apr, 2005

Want a reversing monitor and/or an in-car navigation system? Or how about a back-seat screen for entertainment video? Here's how to do-it-yourself and save money.

26 Apr, 2005

The sets that we bought 30 years ago and their problems

28 Apr, 2005

Connect it to your computer (with sound card) or a MIDI synthesiser for a truly awesome array of sound possibilities. Using a computer, you can even record, save and playback your compositions.