K. Walraven (99)

| It is clear that power consumption may be reduced if ancillary equipment is on only when the master unit is switched on. This is, for in...

| Digital systems need an interface to communicate with the outside world. Since only voltage drops can be used by the hardware, auxiliary...

| One of the first accessories almost any camcorder user will want to have is a simple fader which can help to soften the rather abrupt...

| Designs that produce sound or light effects are always sure to appeal to a large audience. That is not surprising in itself, because t...

| A standard CMOS oscillator IC does not work with a watch crystal (32.768 kHz). At best, it starts to oscillate when the supply voltage is sw...

| Considering the deteriorating state of our environment and the decreasing resources of organic fuel, it is not difficult to predict a much m...

| It is often said that there is no better protection against burglars than a good watchdog. Well, that may be, although we have our dou...

| A simple switching clock which keeps one light on in the evening hours when you are not at home is no Ionger taken seriously as a burg...

| The circuit presented, although a simple design, guarantees a prompt and reliable indication of any form of water leak. It is hardly l...

| Winter landscapes may be beautiful, but winter weather can be treacherous for motorists: the difference between wet and icy roads is not e...