More about simple (309)

1-05-2005 | Of necessity, today’s (surround) amplifiers have to come with lots of inputs and outputs. However, a problem occurs if you want to use sever...

1-05-2005 | How do you know accurately if a magnet is stronger or weaker than one you’ve dubbed your reference device? This simple to build instrument h...

1-04-2005 | Lithium-polymer batteries are becoming increasingly common in new electronics equipment. They are superior in terms of both size and weight...

1-02-2005 | Digital terrestrial television (DVB-T) is now available in many parts of the country. Of course, you need a DVB-T receiver and a (new) UHF T...

1-12-2004 | This audio peak detector allows a pair of stereo channels to be monitored on a single LED.Identical circuitry is used in the left and right...

1-07-2004 | Most darkness activated alarms employ opamps and some logic ICs. Here, a less expensive approach is shown based on the eternal 555, this tim...

1-07-2004 | A simple NiCd charger can be built using ‘junk box’ components and an inexpensive LM317 or 78xx voltage regulator. Using a current limiter c...

1-07-2004 | Lots of consumer electronic equipment like TV sets, VCRs, CD and DVD players employs infrared remote control. In some cases, it is desirable...

1-02-2004 | The absence of a mains power outlet is often keenly felt on camping sites, with car repairs in the middle of nowhere and with picnic or part...

1-12-2003 | The programmer described in this article has been designed for the well-known P87LPC76x family of microcontrollers manufactured by Philips....