More about time (745)

1-07-1991 | Keeping your car battery constantly charged when the car is not in use appreciably increases the life of the battery. Charging is, of co...

1-07-1991 | The solid-state relay timer described in this article is weil suited to the on/off switching, at predetermined times, of a.c. loads rated...

1-06-1991 | The Atari ST is a user-friendly computer supported by a massive amount of excellent software. Unfortunately, early models of the ST lack a...

1-03-1991 | Many amateur photographers spend a disproportionate amount of their time in the dark-room. The exposure timer presented here can cut down...

1-02-1991 | Since our first publication on RDS almost two years ago, the system has met with rapid acceptance by European radio broadcasters. At the t...

1-01-1991 | This review deals with the recently introduced 23/24 cm FM Amateur Television (ATV) receiver from EHC (Valves) Ud. At the time of writing,...

1-01-1991 | After the several 'spartan' preamplifiers we have published over the past few years, we feeI the time has co me to ofter our readers a mor...

1-12-1990 | Roughly two years ago, the carrier trequency ot the 400-kW long-wave Droitwich transmitter was changed trom 200 kHz to 198 KHz. This was d...

1-12-1990 | The all-solid-stäte preamplifier we published some months ago is controlled entirely electronically, including the switching of the input...

1-12-1990 | The electronic ignition circuit presented here is intended to be inserted into a car's conventional ignition system. In effect, it replac...