|
|
|
Upgrading An Ultra-LD Mk.2 Amplifier To Mk.3 Standard
26 September 2011
This teensy PCB lets you add the vital modifications to an Ultra-LD Mk.2 amplifier to bring it up to Mk.3 performance. We are doing this so that all those people who built the Ultra-LD Mk.2 from the August-September 2008 issues will not be too annoyed with us for superseding it with the Mk.3 version. After all, we want to keep our readers happy and content!
|
|
|
High-Performance Stereo Headphone Amplifier, Pt.1
16 September 2011
If you can't afford a high-performance amplifier and loudspeakers, you can still have the best possible hifi sound, with this headphone amplifier and a set of high-quality headphones.
|
|
World Record 111-Gigapixel Photograph
14 September 2011
When it was "taken" late last year, the photo above of the city of Seville, Spain, was a world record at 111 gigapixels. If printed out, it would be bigger than two football fields. And you can zoom in to show amazing detail. But shooting such a photo was no mean feat...
|
|
Improving The GPS-Based Frequency Reference
10 September 2011
Did you build the GPS-based Frequency Reference described in the March-May 2007 issues of SILICON CHIP? Its frequency stability can be significantly improved with a couple of circuit changes, as described here. The modifications also make it easier to lock the oven crystal to the correct frequency.
|
|
Can You Really Reduce Your Electricitiy Bill
08 September 2011
With recent large increases to commercial and domestic electricity tariffs and promises of more to come, everyone wants to know how to reduce their electricity consumption. This can be done but it is neither simple nor easy. In this article we will review some strategies for saving power and debunk some of the scams around!
|
|
Ultrasonic Water Tank Level Gauge
04 September 2011
Do you have a tank to collect rainwater? Do you know how much water is in it? This ultrasonic tank level gauge fires an energy burst which bounces off the surface of the water and then a microcontroller calculates how far down the tank water level is. Clever, eh!
|
|
|
|
|
|
|
