| The delay is intended to switch on the mains to heavy loads gradually to ensure that the switch-on current remains within certain Iimits...
| The delay is intended to switch on the mains to heavy loads gradually to ensure that the switch-on current remains within certain Iimits...
| It is a frequent requirement in computer and audio systems that several units are switched on or off simultaneously. The simplest way of...
| If you have a non-qwerty keyboard and would like to use this with your computer without having to reIearn where the deviating keys are, this...
| It is an undeniable fact that electric and magnetic fields affect living organisms. How strong a field the human body can withstand withou...
| C G Mangold 89 audio-controlled mains switch EE 110 July/August 1986 It is often useful for audio or video equipment to be switched off auto...
| lamp saver elektor september 1984 Most incandescent bulbs have an estimated lifespan of about a thousand hours of brightness. The actual tim...
| olid state relays elektor june 1982 — 6-57 solid state relaYs the modern method of switching mains Electronic relays have quite a lot of a...
| The programmable timer/con-troller, described elsewhere in this issue, is not really complete. It cannot be used to switch aquarium lighting...