| After many years, there is finally a digital version of the well-known Type 555 timer IC: the HCT5555.The traditional 555 can be used as...
| After many years, there is finally a digital version of the well-known Type 555 timer IC: the HCT5555.The traditional 555 can be used as...
| The circiut presented here enables the automatic switching on of outside lighting when its gets dark and, what's more, it does so for a...
| In many countries, unlike most of the UK, it is still not possible to parallel two or more telephones easily. The circuit described here...
| This 8-bit bus extension card for IBM PCs and compatibles allows you to eonnect and test insertion cards without having to open the comp...
| This is a useful little tester for use in testing and checking the electric circuits of a goods vehicle. Two LEDs indicate whether one of...