Elektor Team (9517)

1-07-1981 | o 4 4 is 6 4 6 ill 4 E 6 Ilib a 4 * One of the most useful dynamic RAM"s, the 4116, unfortunately needs three supply voltages. Nothing can b...

1-07-1981 | P. Dooley russian roulette 1 For those readers who have a spirit of adventure, and a sense of humour, we present an interesting little "game...

1-07-1981 | 13 miser - LED te amount of The circuit described here allows he energy consumed by LEDs to be duced to a fraction of the normal value. This...

1-07-1981 | 14 power-assisted NICADs In many instances where NICAD batteries are used to power immobile equipment it becomes necessary at times to remov...

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...