J. Ruffell (55)

1-07-1991 | A frequent annoyance with battery-operated equipment is that just after you switch it on you notice that the battery is fIat. Quite proba...

1-07-1991 | Nnational Semiconductors' LM334Z is a three-pin preset-table current source, whose output may be set to between 1 µA and 10 mA. It may b...

1-07-1991 | The most popular currcnt indicator in electronics is almost certainly the Iight-emitting diode (LED) which is available in a number of c...

1-07-1991 | Motorola's Type TLC2201 low-noise precision opamp is probably not the best-known amplifier made in LinCMOS technology, but it is certain...

1-07-1991 | The program and the circuit presented here are an introduction into practical interrupt handling in IBM PCs and compatibles, a subject f...

1-07-1991 | Everyone should clean his teeth a tleast a couple of times a day. Dental research shows that cleaning one's teeth for three minutes at a...

1-03-1991 | This is the first in a short series of articles on applications of the multifunction measurement card for PCs, described in the previous t...

1-02-1991 | Following last month's formal description of the operation of the measurement card, many of you will be keen on tackling the more practica...

1-01-1991 | The high-performance insertion card described in this article allows your IBM PC-XT, PC-AT or 100% compatible to measure direct voltage at...

1-12-1990 | Chopper-stabilized opamps are in many cases the only feasible alternative when we want to amplify very small direct voltages. In this art...