| This article looks at instruments and methods that can be used by both harn operators and shortwave listeners to get the most out of an an...
| This article looks at instruments and methods that can be used by both harn operators and shortwave listeners to get the most out of an an...
| This article looks at several options that exist for the distribution of satellite TV signals in small networks. Also, in the face of the f...
| It is widely believed that electromagnetic fields can affect biological systems, including man, although the evidence remains equivocal. Qu...
| Welcome to this new two-monthly column in which we will be covering the fascinating hobby of long-distance TV reception, or DX-TV, as it...
| The instrument described in this three-part article is one you can not afford to give a miss since it is very likely the most advanced fre...
| The type NH -02 humidily sensor from Figaro consists of a capacitive humidity sensor, Zg, in series with a thermistor, Zt on an aluminium...
| Although lhe properties of the LM317 regulator are excellent, they can be improved by cascading two of these devices. There is then a co...
| With the aid of a few components a standard relay can be made to change state every time a pulse is applied (or a switch is pressed).
| Here is a simple way of making a tape counter that gives a ten-step indication with the aid of two ICs and a seven-segment display. Its g...
| Cassette recorders like lTT's SL537 AV or SL837 AV, used by tape-slide producers, have a four-track head. A pulse circuit is connected to...