All items tagged with Switch and relay (14)

1-07-2022 | While the semiconductor industry has some great innovations, sometimes you can’t beat a real switch! Here we delve into the world of reed re...

1-04-2012 | Our ElektorBus series has shown how much interest there is in home automation applications. Here we describe a small circuit board that can...

1-12-1999 | Current personal computers with an ATX motherboard are not provided with a switched mains output socket. It is therefore no longer possib...

1-12-1999 | When a bipolar relay is to operate from a single supply voltage, normally two coils are needed. When, in Figure 1, the push-button RESET s...

1-07-1999 | It sometimes happens that it is necessary for the contacts of a mains switch to be isolated or for the switch to be able to handle a large...

1-07-1998 | Simple triangle-wave generators have a weakness in that the waveform of their output signal normally cannot be modified. The circuit pre...

1-07-1997 | When it comes to input selection in a preamplifier, the use of a relay is always better than a simple rotary switch - at least from a qua...

1-02-1996 | This competition entry describes a microcontroller driven switching clock (housekeeper) with a 2x16- character LC Display, input keys and tw...

1-12-1994 | The 'Medium power a. f. amplifier uses a relay for the switch-on delay to suppress annoying switching plops. When the amplifier ts switc...

1-06-1993 | The use of CW (morse) on a high-power transmitter/receiver presents a serious risk of burned antenna (coax) relay contacts or destruction o...