A. Rietjens (66)

1-07-1995 | The generator may be of interest to those who wish to record FSK (frequency-shift keying) signals on their tape recorder. Such signals co...

1-07-1995 | Some of hefastest PCs around these days, particularly 60-MHz+Pentium and 486- based machines, have a small ventilator fitted on the CPU t...

1-07-1995 | The charger is designed to charge NiCd batteries with capacities of 150-4000 mAh. A potential 5 V higher than the nominal voltage of the...

1-05-1995 | The capacity of a fully charged NiCd (nickel-cadmium) battery can be measured fairly accurately by draining the battery with a fixed curre...

1-12-1994 | Microprocessors are powerful devices and it is, therefore, not to be wondered at that their popularity has grown so fast in such a short...

1-12-1994 | Although a fuse is primarily intended to melt when the current through it becomes too large, there are times when this should not happen...

1-12-1994 | A recurring problem in the design of optoisolator circuits is arriving at the right compromise between insensitivity to spurious signals...

1-10-1994 | Modern audio and video systems, virtually without exception, use infra-red remote control. If one day (normally a Sunday) the remote contr...

1-10-1994 | Peripheral Interface Controllers, PICs®, from Microchip are currently in the centre of attention. In descriptions of these devices an impo...

1-09-1994 | This inexpensive oscilloscope can be used at frequencies up to 20-30 kHz (optionally up to 1 MHz). It works from 12 V and can thus be use...