Elektor Team (12074)

1.07.1979 | Recharging lead-acid batteries is often assumed to be an extremely straightforward matter. And that is indeed the case, assuming that no spe...

1.07.1979 | When we first published a circuit in last year`s Summer Circuits issue which was designed to `kill` the sound of a DJ`s voice between recor...

1.07.1979 | Feuchte-Detektor

1.07.1979 | Herzschlag-Monitor digital (Ohrläppchen)

1.07.1979 | When considering constructing a `wireless` headphones system, three basic approaches present themselves: a `genuine` r.f. transmitter and re...

1.07.1979 | When considering constructing a `wireless` headphones system, three basic approaches present themselves: a `genuine` r.f. transmitter and re...

1.07.1979 | Diebstahlsicherung fürs Auto (Motorabschaltung)

1.07.1979 | A high quality servo amplifier can be built using only one IC and a handful of passive components. The SN28654 (Texas Instruments) contains...

1.07.1979 | Before going on to describe the circuit of the receiver, there is one point worth noting. Although primarily intended for use in an ultrason...

1.07.1979 | A frequency counter is an extremely usefu I tool for tuning the voltage controlled oscillators (VCOs) of a synthesiser both quickly and accu...