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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.


BCD word generator. Provides a simple, low-cost solution to efficient and fast testing of digital circuits and microprocessor input ports. Est. cost: $30.
COMPUTERCRAFT Jan 1992 (v.2#1) pg. 38
Correction COMPUTERCRAFT Mar 1992 (v.2#3) pg. 9

Build the Digilyzer, a small box which performs some digital analyzer functions (monitors logic levels at 8 inputs, monitors IC input/output, monitors memory locations on a bus, etc.). Est. cost: $50.
ELECTRONICS NOW Jun 1994 (v.65#6) pg. 75

Voltage tracker can monitor a voltage unattended, remember the direction of voltage fluctuation, or the arrival or non-arrival of a pulse. Est. cost: $25.
ELEMENTARY ELECTRONICS Nov-Dec 1966 (v.3#2) pg. 49

How to silence a noisy computer. Tips from some of the chip manufacturers on how to eliminate electronic noise ("glitches") in digital circuits. The information is taken from their chip data books.

Build your own TTL diagnostic aid. Test unit will tell you whether or not a TTL pulse has occured, although it will not indicate the duration. Features a test clip, test probe, mode and slope selector, etc. Est. cost: $100.

Logic signal measurements. How to use an oscilloscope to make basic measurements in digital logic circuits.
MODERN ELECTRONICS [2] Mar 1987 (v.4#3) pg. 16

A digital measurement lab instrument. Part 1. Main frame power supply and readout with 20 MHz frequency counter module.
POPULAR ELECTRONICS [1] Nov 1970 (v.33#5) pg. 51
Added Info POPULAR ELECTRONICS [1] Jan 1971 (v.34#1) pg. 63
Added Info POPULAR ELECTRONICS [1] Jun 1971 (v.34#6) pg. 69
Added Info POPULAR ELECTRONICS [1] Mar 1972 (v.1#3) pg. 60
Correction POPULAR ELECTRONICS [1] May 1972 (v.1#5) pg. 23

Simple test instruments for digital circuits. Circuits for a slow-speed repeating trigger with an instant stop and a pulse detector that can double as a pulse-coincidence detector.
POPULAR ELECTRONICS [1] May 1973 (v.3#5) pg. 64

Testing digital circuits. How to use commercial or homemade test devices to check digital IC's, either in or out of the circuit.
POPULAR ELECTRONICS [1] May 1973 (v.3#5) pg. 91

Device to simultaneaously check out all 14 or 16 pins of an in-circuit DIP package. The IC can be a CMOS, TTL, DTL, RTL or other positive-supply digital logic. Est. cost: $19.
POPULAR ELECTRONICS [1] Sep 1974 (v.6#3) pg. 63

Stalled-output detector circuit can be used as a building block to detect a stuck output or node in a circuit. The circuit detects the loss of a pulse train and could be applied in an IC tester, security system, power-fail detector, etc.
POPULAR ELECTRONICS [2] Jan 1990 (v.7#1) pg. 24

Risetime tester circuit can be used to check the risetime of digital encoders without the use of a scope.
POPULAR ELECTRONICS [2] Apr 1990 (v.7#4) pg. 25

A logical look at digital circuits. Tips on troubleshooting digital circuits for the professional electronics technician.
RADIO-ELECTRONICS Oct 1977 (v.48#10) pg. 74

How to troubleshoot digital circuits. Includes digital reference charts.
RADIO-ELECTRONICS Nov 1978 (v.49#11) pg. 41

Troubleshooting digital circuits. An introduction to the tools and techniques for working with digital IC's.
RADIO-ELECTRONICS Mar 1982 (v.53#3) pg. 63

Do-it-yourself test instruments. Pulse stretchers.
RADIO-ELECTRONICS Jul 1985 (v.56#7) pg. 69

Tip: Use the X-Y or vector mode to test the reset function of sequential logic circuits, microprocessors, etc.
RADIO-ELECTRONICS Feb 1987 (v.58#2) pg. 23

An adapter to turn a multimeter into a digital circuit tracer. Est cost: $4.
RADIO-TV EXPERIMENTER #806 Oct-Nov 1966 (v.21#2) pg. 89