Elektor Team (9533)

1-07-1981 | .... whether the input voltage lies within a spec small voltage range, which is symmetrical about zero If the voltage is within the range, t...

1-07-1981 | R. Rastetter auto theft alarm Readers who are in the habit of parking their cars close to lampposts at night may presume that the vehicle is...

1-07-1981 | 7-20 — alektor july/august 1981 random number generator A random number generator is very often required when developing and running game...

1-07-1981 | an effective scratch and rumble filter Many home-constructed audio amplifiers incorpor- ate scratch and rumble filters, but quite often the...

1-07-1981 | digit•al t.uning indicator Although the Japanese manufacturer, OKI, is less well known than some others, they are nevertheless important a...

1-07-1981 | 744 — elektor july/august 1981 objektor The aim of this circuit is to detect the presence of a conductive object, provided the object is w...

1-07-1981 | high input impedance voltage follower hones, as an It is common knowledge that Field Effect Tran- well sistors (F ETs) feature a very high i...

1-07-1981 | lam power levels as well. The IC contains an adjustable voltage reference and an accurate ten-step voltage divider. The input buffer drives...

1-07-1981 | The circuit shown in figure 1 meets these demands uately. It is a bridge version of the quite adeq PWM amplifier with an output power self-o...

1-07-1981 | simple swinging poster The original "swinging poster" circuit was published in the January 1981 issue of Elekta disco etc. As the circuit is...