More about radio (330)

1-07-2001 | This circuit is purposely presented with many loose ends (not literally, of course) to stimulate experimenting with RF circuitry at a small...

1-07-2001 | PC radios are certainly nothing unusual. However, unless you are prepared to spend a lot of cash you can’t buy a wideband PC radio that rece...

1-05-2001 | In this day and age when we’re surrounded by hi-tech we should leave it all behind and return to a very basic circuit. So stop thinking for...

1-01-2001 | This article introduces a PC-based radio-linked caller identification system. It consists of a central receiver and up to 16 caller units. T...

1-12-2000 | In 1998, as part of the MMC project, researchers at the Technical University of Delft, the Netherlands, started to design a small but powerf...

1-07-2000 | Here is a simple circuit for a one transistor Audion type radio powered by a 1.5 V battery. It employs a set of standard lowimpedance headph...

1-07-2000 | If you ever look at construction notes for building old detector type radios the type of headphones specified always have an impedance of 2...

1-01-2000 | Presently, data transfers between the PC and printers, scanners, fax machines and modems, as well as communication between a laptop and a ce...

1-12-1999 | This rugged power supply is based on the popular LM338 3-pin voltage regulator. The LM338 is capable of supplying 5 A over an output volta...

1-10-1999 | The design described in this article is one of those with immediate appeal. It is easy to build, very compact, and offers exceedingly...