| Letters from our readers.
| In some countries, it is still obligatory for cars parked in the road at night to have their parking lights on. If the car is parked well...
| Measuring the current drawn by an apparatus is always a rather complicated matter. If a shunt resistor is placed across the positive supp...
| Micro Linear's ML2035 monolithic programmable sine wave generator IC is used here without the usual microcontroller to supply the frequenc...
| Although a digital circuit for driving a load such as a lamp or a d.c. motor is fairly simple, it has a few drawbacks. It does not make t...
| AII analogue multiplexers act as the solid-state equivalents of digitally controlled rotary switches. But multiplexers at the interface b...
| The decoder enables FSK-signals, for example, those from a tape recorder, to be converted into digital signals.
| 9 V BATTERY LlFE EXTENDER rten an equipment is supplied by O a battery whose nominal voltage 01 1N4002. L1 is only slightly high er than the...