More about LED (794)

1-03-1988 | 30 COMPUTER-CONTROLLED SLIDE FADER (1) Revenge yourself on giggling friends and relatives joined to watch and criticize your clumsy slide pr...

1-02-1988 | VIDEOTEX: A PROMISE UNFULFILLED? by C.H. Freeman Although Britain has set the rest of Europe an example in the liberalization of its telecom...

1-01-1988 | 2 Channel A 00- Channel B Ss IC2 6116 2 DI 02 ‘4.5 5v 0 CL 211 IR RIR 0 13 O §14§1.4 1. IC3 7411a1393 Po2F1I05RS2R sTS 6-41 co, 74110117...

1-07-1987 | EE JULY/AUGUST 1987 The intermediate frequency (IF) moduleshowninFig.1accepts should also be possible in the drive a comparator from the FM...

1-07-1986 | EE 40 July/August 1986 151thermostat-controlled soil heating Many people with a keen interest in growing plants insist on the fact that many...

1-07-1986 | smart LED selector I In this tiny circuit, for use in, for in- stance, a two-lights model railway signal, one of two LEDs may be selected wi...

1-07-1986 | Musical instruments are tuned with the aid of a signal source that generates a signal at a frequency of 440 kHz. An electronic tuning fork i...

1-07-1986 | fast voltage-controlled pulse generator 1441 Certain measuring and process con- trol applications require pulse generator sections which are...

1-07-1986 | EE July/August 1986 881LED revolution counter A close look at the dashboards of a number of cars may reveal the use of three basic types of...

1-07-1986 | C G Mangold 89 audio-controlled mains switch EE 110 July/August 1986 It is often useful for audio or video equipment to be switched off auto...