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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.


Alculator. A portable analog computer which calculates the probable blood alcohol level based on body weight, number of drinks, alcohol content of drinks, and number of hours since drinking began. Est cost: $30.
HANDS-ON ELECTRONICS Summer 1984 (v.2#1) pg. 66

How to determine the amount of alcohol, if any, that is present in gasoline. This test is designed for field use, where time and simplicity are important factors.
HOMEBUILT AIRCRAFT Feb 1986 (v.13#2) pg. 18

Breath-O-Meter. A sophisticated solid-state device tests blood alcohol concentration to warn against driving while intoxicated.
MODERN ELECTRONICS [2] Dec 1990 (v.7#12) pg. 24

How to test gasoline to determine the amount of alcohol that has been blended in.
POPULAR MECHANICS Jul 1990 (v.167#7) pg. 22

Just-for-fun analog computer monitors a person's alcohol intake by knowing quantity consumed, percent of alcohol, time period and body weight.
POPULAR SCIENCE Apr 1969 (v.194#4) pg. 101

How to test for alcohol in your fuel.
POPULAR SCIENCE Apr 1987 (v.230#4) pg. 116

Breath alert alcohol tester. An electronic instrument designed to test the concentration of alcohol in a person's blood stream by analyzing exhaled breath. Est. cost: $45.
RADIO-ELECTRONICS Oct 1988 (v.59#10) pg. 51, 69
Correction RADIO-ELECTRONICS Dec 1988 (v.59#12) pg. 14

Circuit for a breath-alcohol tester uses a low-cost sensor.
RADIO-ELECTRONICS Apr 1990 (v.61#4) pg. 63