More about LED (792)

1-10-1989 | 34 LOCAL Il FROST I weather MOSTLY CLOUDY RAIN IN PLACES FROM THE MET OFFICE 890112. 14c carrier, and no noise added to the picture during t...

1-07-1989 | TEST & MEASUREMENT 048 VOLTAGE-CONTROLLED OSCILLATOR A1,A2 = 1C2 = TL072 N1...N4 =1C3 = 4071 T 00® T On e5V 894100 • 11 The voltage-contr...

1-03-1989 | 60 EE March 1989 EPROM-CONTROLLED TIME SWITCH by J. Vinckier Time switches can take many shapes. Where apparatus has to be switched on and o...

1-09-1988 | 48 EE:rnt1= MICROPROCESSOR-CONTROLLED RADIO SYNTHESIZER 2 by Peter Topping This final instalment of the article deals with the construction...

1-07-1988 | EE MICROPROCESSOR-CONTROLLED RADIO SYNTHESIZER 1 The addition of a microprocessor-controlled synthesizer to a continuously-tuned receiver gr...

1-07-1988 | I oI This oscillator supplies an output level between -10 dBm and +3 dBm, and can be tuned between 1250 MHz and 1800 MHz simply by varying t...

1-04-1988 | EE April 1988 DESIGN IDEAS The contents of this column are based solely on information supplied by the author and do not imply practical exp...

1-04-1988 | 60 COMPUTER-CONTROLLED SLIDE FADER (2) The slide effects unit introduced last month is completed with a control program and an optional keyp...

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...