Norman Lathrop Enterprises  
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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.

CHRONOMETER
sa   STOPWATCH
sa   TIME-SIGNAL RADIO
xx   CLOCKWORK
xx   TIME
xx   WATCH

Ballistic chronograph made from tin cans.
POPULAR MECHANICS Oct 1964 (v.122#4) pg. 190

Time and voltage calibrator. Part 1. Build this time and voltage reference for use in calibrating precision digital test equipment. Calibrator delivers from 0 to 10 volts in 1-mV steps and from 0 to 999.9 microseconds in 0.1 microsecond steps. Est. cost: $150.
RADIO-ELECTRONICS May 1979 (v.50#5) pg. 35

Time and voltage calibrator. Part 2.
RADIO-ELECTRONICS Jun 1979 (v.50#6) pg. 59

All about calibration. The quest for perfect measurements. New accuracy standards for ohms, volts, amperes, and time.
RADIO-ELECTRONICS Jun 1988 (v.59#6) pg. 57
Correction RADIO-ELECTRONICS Aug 1988 (v.59#8) pg. 15
Correction RADIO-ELECTRONICS Sep 1988 (v.59#9) pg. 16

Electronic chronometer uses tunnel diodes.
SCIENTIFIC AMERICAN Mar 1963 (v.208#3) pg. 157

Tuning fork with electric drive can make an inexpensive and highly accurate clock.
SCIENTIFIC AMERICAN Apr 1964 (v.210#4) pg. 136

Making a simple chronograph which draws a permanent timing record on roll paper.
SKY & TELESCOPE Apr 1983 (v.65#4) pg. 369

A simple photochronograph. A 35mm camera, movable Polaroid filmholder, flash unit and digital stopwatch are combined to form a device for recording the exact time of observations in a permanent form.
SKY & TELESCOPE Jul 1984 (v.68#1) pg. 76