Elektor Team (9510)

1-07-1984 | a meterological LED Table Prediction accuracy during the test period: England 80% Scotland 89% Wales 87% N. Ireland 91% Irish Republic 93% N...

1-07-1984 | for computer-controlled d.c. powered 373 equipment 374 5V 2001 T2 It is not enough simply to own a micro computer, you must also know what t...

1-07-1984 | a simple resonant frequency meter Way back when electronics was still young (shortly after the stone age) when grids, anodes and cathodes we...

1-07-1984 | with variable pulse rate and pulse width The generator presented is based on two 555-timer ICs and provides rec- tangular pulse trains (wave...

1-07-1984 | with good accuracy at low frequencies Intersil IC type 7226B is just the right counter for a simple but reliable fre- quency meter which cov...

1-07-1984 | switches sounds electronically In a few situations it is desirable to be able to switch audio signals elec- tronically. One such situation i...

1-07-1984 | based on a current source The 78XX/79XX series voltage regulators have become so typecast in their main application that we tend to forget t...

1-07-1984 | exotic, perhaps, but not esoteric Perhaps it is a longing for nature in our technological society that prompts so many readers" requests for...

1-07-1984 | by opto-electronics It is true, of course, that it has been possible for many years to release a camera shutter remotely. But that is normal...

1-07-1984 | for alarm extension The "alarm extension" described in the September 1983 issue of Elektor, when used with a telephone cannot make a clear d...