More about DC (398)

1-07-1985 | Nobody pays much attention to auto- matically opening and closing sliding doors nowadays. In view of the com- plex mechanics involved, not t...

1-12-1984 | function generator elektor december 1984 ; b: function generator made-to- measure waveforms Technical specifications • Frequency range: 1...

1-07-1983 | 11 noise and vibration detector Whether it is the hi-fi next door, the cat purring quietly, or a knock at the door, the detector described h...

1-07-1983 | elektorjuly/august 1983 57 amplified triac drive A well-known shortcoming of vir- tually all electronic components is their sensitivity to t...

1-04-1983 | interlude elektor april 1983 a remote- control preamplifier To provide a preamplifier with a remote- control facility, the first step is to...

1-12-1982 | 12-40 — elektor december 1982 home telephone help used (see figure la) may differ depending on the type of tele- phone in use. If your sys...

1-07-1982 | 7-48 - elektor july/august 1982 "And we don"t mean graphic equaliser". An oscillator operating along similar lines to an equaliser. In the c...

1-07-1982 | Ordinary LEDs have a rather monot- onous diet: they will only "swallow" DC current with the right polarity, in which case a series resistor...

1-07-1982 | The duty cycle of a square wave signal is normally measured by means of a pulse counter or an oscilloscope. However, this can be simplified...

1-07-1982 | 7-60 - elektor july/august 1982 A window comparator, also called window discriminator, examines whether a voltage is situated in the range (...