Electronics Now articles from August 1994

Electronics Now archives from August 1994

Adjustable continuity tester.
August 1, 1994... THE CONTINUITY TEST PROVIDED BY most digital multimeters indicates a closed circuit whenever the resistance across the test leads is less than 100 ohms. The tester described in this article lets you set the continuity-test resistance level...

Cybermations SCK-2000 stepper-motor controller kit. (Cybermations Inc.) (Equipment Reports)
August 1, 1994... Developing a new product these days can be a scary proposition. Any new product--especially one that's packed with high technology--can cost thousands, and sometimes millions of dollars to bring to market. There's no guarantee that the...

A vision of the future. (IBM Corp.'s new marketing approach) (Computer Connections)
August 1, 1994... IBM is up to something that could change the computer industry as we know it. Early this past spring, IBM called in about 750 of its closest advisors for talks given by Lou Gerstner (IBM's CEO) and his top managers. The close advisors are...

TV commercial editor.
August 1, 1994... EVERYONE HAS BEEN IRRITATED at one time or another by the all-too-frequent commercials on broadcast television. Usually a commercial comes just in time to ruin the most suspenseful part of a movie. Recording a show on your VCR doesn't solve the...

Build this amateur TV station.
August 1, 1994... IN PART 1 OF THIS ARTICLE ON AMATEUR television transmitters (ATV) the operating theory behind the equipment was described. Four different ATV models were described: a 5-watt transceiver (transmit, receive, and downconvert), a 5-watt transmitter,...

Phase-locked loops.
August 1, 1994... THE PHASE-LOCKED LOOP (PLL) circuit "locks" the frequency and phase of a variable-frequency oscillator to that of an input reference. An electronic servo loop, it provides frequency-selective tuning and filtering without the need for coils or...

Receiving weather satellite images.
August 1, 1994... THE SCIENCE OF WEATHER FOREcasting has been revolutionized in recent years by weather satellites that transmit cloud pictures and surface temperature data back to earth from space. You can tune to the signals and display their transmitted images...

Build this PC I/O breadboard.
August 1, 1994... GIVE A MAN A FISH AND YOU'LL FEED him for a day; teach a man to fish and you'll feed him for life. That old proverb can be applied to EPROMs, too. Give a man an EPROM programmer and he can program some devices. Teach him how to build a...

Restore it right! (restoring electronic products)
August 1, 1994... YOU CAN TAKE PRIDE IN OWNING faithfully restored vintage electronic products from the vacuum-tube era--radios, tuners, amplifiers. or test instruments. They will remind you of an earlier time when America was the dominant power in consumer...