More about Portable (80)

1-12-1994 | Just in case you had not noticed: the world is going portable. Camcorders, mobile telephones, drllls, model planes, nothing works without b...

1-09-1994 | This inexpensive oscilloscope can be used at frequencies up to 20-30 kHz (optionally up to 1 MHz). It works from 12 V and can thus be use...

1-09-1992 | This transceiver was designed in response to a need for a simple, easy to build, self-contained radio for use through the loeal 23-em (...

1-04-1992 | The 2-metre band has been popular tor three decades and Ionger tor short, medium-range and mobile communication between radio amateurs,...

1-02-1992 | The performance of the average portable radio (not including the tiny plastic one and the huge ghetto blaster) is usually quite adequate f...

1-05-1991 | The starting point for this design is the well-known 5/8-lambda whip antenna with base coil as used for mobile communications in the 2-...

1-02-1991 | Telephones for use on board aircraft, employing satellite systems around the globe, must be the ultimate in mobile phone use. What was on...

1-12-1990 | Applications for this mechanically set and reset bistable are found, among others, in anti-theft devices and model railway crossings.

1-12-1990 | The portable carger is intended primarily to give model enthusiast the opportunity of charging their NiCd betterles from Cl car battery o...

1-12-1990 | The "portable battery charger" described earlier in this supplement may be extended by a current source that ensures a constant current t...