| This simple to build antenna booster offers a gain of some 20 dB over a frequency range that covers the VHF FM radio band and the whole of...
More about Simple (292)
| Overcharging of batteries is prevented by the timely switching off of the charger. A timer that can be set to within a minute can be bui...
| A problem with standard logic as implemented in the 7400 series of integrated circuits is that, since the approach is functional, there i...
| In this second and final part of our investigation into the design and uses of four-terminal attenuator systems, we shall first of all der...
| Single-Chip microcontrollers have been designed and optimized for specific applications such as industrial control and automotive applica...
| This relay card connects to the universal I/O-interface for IBM PCs described in the May 1991 issue. Simple to build and program, it ofter...
| The charge-discharge-idle (C-D-D monitor described here is suitable for all vehicles with a 12-V or 24-V battery of which the negative t...
| The diagram shows how the inexpensive and widely available 4066 quad bilateral analogue switch can be used to build a pulse generator wi...
| Over the last few years, a variety of low-power Helium-Neon (HeNe) laser tubes has founds its way in into the electronics surplus trade circ...
| Those of you who run assemblers capable of producing Tektronix or Intel format output files have a problem when an available EPROM program...