29-Nov-2006

The following are my favorite precise time & frequency -related articles from the Hewlett Packard Journal; vintage issues scanned from my HPJ collection spanning 1949 to 1976. Click on any pages below for hi-resolution images. Articles copyright by Hewlett-Packard and used by permission.

1955

New Plug-In Decade Counters of Refined Design
February 1955, Vol. 6. No. 6, page 2, 3

A New 120 KC Industrial Counter for Measuring RPM, Velocity, Quantity, Flow, Etc.
July 1955, Vol. 6. No. 11, page 1, 2, 3, 4

1956

New Plug-In Decade Counters of Refined Design
July-August 1956, Vol. 7. No. 11-12, page 1, 2, 3, 4

1963

Examination of the Atomic Spectral Lines of a Cesium Beam Tube with the -hp- Frequency Synthesizer
December 1963, Vol. 15, No. 4, page 8, 7

1964

A New Performance of the "Flying Clock" Experiment
July 1964, Vol. 15, No. 11, page 1, 2, 3, 4, 5

A Measurement of the Ratio of the Zero-Field Hyperfine Splittings of Cesium 133 and Hydrogen
July 1964, Vol. 15, No. 11, page 6, 7, 8

1965

Correlating Time from Europe to Asia with Flying Clocks
April 1965, Vol. 16, No. 8, page 1, 2, 3, 4, 5, 6, 7, 8

NBS Standard Frequency and Time Broadcast Schedules
November 1965, Vol. 17, No. 3, page 10

A Technique for Making Ultra-precise Measurements of Microwave Frequency Stability
November 1965, Vol. 17, No. 3, page 11, 12

1966

World-wide Time Synchronization, 1966
August 1966, Vol. 17, No. 12, page 13, 14, 15, 16, 17, 18, 19, 20

A Summary of Some Performance Characteristics of a Large Sample of Cesium-Beam Frequency Standards
October, 1966, Vol. 18, No. 2, page 16, 17, 18, 19, 20

Operation of the Portable Cesium-Beam Frequency Standard
October, 1966, Vol. 18, No. 2, page 19

1967

"Flying Clock" Comparisons Extended to East Europe, Africa and Australia
December 1967, Vol. 19, No. 4, page 12, 13, 14, 15, 16, 17, 18, 19, 20
Flying Clocks, Relativistic Effects

1968

A Rubidium-Vapor Frequency Standard for Systems Requiring Superior Frequency Stability
July 1968, Vol. 19, No. 11, page 8, 9, 10, 11, 12, 13, 14,

Comparing Frequency Standards
July 1968, Vol. 19, No. 11, page 15, 16

Atomic Second Adopted by International Conference
February 1968, Vol. 19, No. 6, page 16
Atomic Second Adopted by International Conference

Atomic Hydrogen Masers: An Introduction and Progress Report
October 1968, Vol. 20, No. 2, page 15, 16, 17, 18, 19, 20

1969

Introducing the Computing Counter
May 1969, Vol. 20, No. 9, page 1, 2, 3, 4, 5, 6, 7, 8

An Electronic Counter for the 1970's
May 1969, Vol. 20, No. 9, page 9, 10, 11, 12

Computation for Measurement Flexibility
May 1969, Vol. 20, No. 9, page 13, 14, 15, 16 

Automatic Counter Inverts Period to Get Frequency
May 1969, Vol. 20, No. 9, page 17, 18, 19

1970

The Computing Counter Gets Its Keyboard
March 1970, Vol. 21, No. 7, page 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Correction to "Flying Clock" Comparisons Extended to East Europe, Africa and Australia
March 1970, Vol. 21, No. 7, page 10

Computing Counter Measurement Systems
December 1970, Vol. 22, No. 4, page 1, 2, 3, 4, 5, 6

Programmer is Key to Computing-Counter Systems
December 1970, Vol. 22, No. 4, page 7, 8, 9, 10, 11, 12

1973

A High-Performance Beam Tube for Cesium Beam Frequency Standards
September 1973, page 14, 15, 16, 17, 18, 19, 20, 21, 22

1976

A Cesium Beam Frequency Reference for Severe Environments
March 1976, Vol. 27, No. 7, page 1, 2, 3, 4, 5, 6, 7, 8, 9, 10