More about LED (794)

1-05-1981 | 5-08 — elektor may 1981 the fully fledged Junior Computer Now that the interface card is to be added to the Junior, the computer will be "...

1-04-1981 | 4-26 — elektor april 1981 crystal-controlled strobosco Why it is so essential for a turnable to have the correct speed? Well, for the simp...

1-07-1980 | A voltage controlled harmonic gener- ator is a particularly useful device for music synthesisers as another means to achieve sound synthesis...

1-07-1980 | between the oscillator and the aerial above the audible threshold (between The applications of simple designs are not always restricted to...

1-02-1980 | 2-44 — elektor february 1980 digital thermometE In principle, the AY-3-1270 is a digita voltmeter, with display drive capabilitm for the r...

1-11-1979 | The speed of a model boat can be controlled by varying the supply voltage to the main motor, via remote control. Normally, this control is f...

1-07-1979 | To many people the radio news bull-etins are of primary interest. This design idea describes a method of switching on a radio by the `pips`...

1-07-1979 | Phasing is a well-known musical effect which is obtained by varying the phase relationship of a signal with respect to an original version o...

1-01-1979 | In April 1977 (Elektor 24) a design was published for an audio output level meter. The meter, which incorporated a LED `thermometer-scale` d...

1-09-1978 | Electronic temperature-controlled soldering irons offer a number of advantages over continuous heat types: delicate components are protecte...