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
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