More about radio (325)

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...

1-07-1999 | Many radio amateurs will not fail to recall the chaotic situations that may occur during fielddays or contests, when several radios have t...

1-07-1999 | This compact 13-V/2-A power supply for ham radio rigs and other VHF/UHF portable PMRs is based on the STR2012/13 voltage regulator IC from...

1-07-1999 | RADIO, TELEVISION VIDEO CW generator aid for radio amateurs The generator described can accept texts of up to 64 characters long and make th...

1-06-1999 | Anyone involved in the construction of radio receivers and associated equipment will have felt the need for some means of producing an...

1-05-1999 | Today some aspect of chaos theory is often seen in science magazines and even newspapers. Does it have any relevance to radio and othe...