January 1966 v.17 n.5

Cover: Measuring Multi-Layer Liquid Depths with TDR

A New High-stability AC Voltmeter with a 10-MHz Frequency Range and 1% Accuracy. A new ac voltmeter with wide frequency coverage and enhanced accuracy is the first of its type to achieve a ground-referenced dc output, by Reid J. Gardner, pg 2-7. 400E.

Measurement of Liquid Layer Thickness with Time Domain Reflectometry, by James Brockmeier, pg 8. 140A, 1415A.

See Also: Correction: For Fig. 3 in the article “Measurement of Liquid Layer Thickness with Time Domain Reflectometry”, page 10 in the February 1966 issue

Design Leaders: Lionel Kay Danielson, Reid Gardner, pg 7

Stratospheric Warning, pg 8

February 1966 v.17 n.6

A New TV Waveform Oscilloscope for Precision Measurements of Video Test Signals. For testing TV transmission systems to meet the standards required for color TV, a special wideband oscilloscope has been designed, by Ralph R. Reiser, Richard E. Monnier, pg 2-6. 191A.

Continuous TV Monitoring with Vertical-Interval Test Signals. A brief description of the signals transmitted in TV channels for continuously checking channel quality, by Richard E. Monnier, Ralph R. Reiser, pg 7-10

Oscilloscope Design Leaders: Ralph R. Reiser, Richard E. Monnier, pg 10

Correction: For figure 3 in the article “Measurement of Liquid Layer Thickness with Time Domain Reflectometry”, page 7 in the January 1966 issue, pg 10

The ‘VITS’ Program for Intercity Television Network Testing, by S. C. Jenkins, pg 11-12. American Telephone and Telegraph Company.

[Author:] S. C. Jenkins, pg 12

March 1966 v.17 n.7

Cover: Low-Frequency RFI Measurements

A Sensitive, Wide Range DC Null Voltmeter with an Internal Bucking Supply for Zero Loading Error. A floating, high-sensitivity DC Null Meter measures voltages to below 1 microvolt and achieves virtually infinite input impedance with a bucking supply, by Charles D. Platz, pg 2-6. 419A.

Design Leader: Charles D. Platz, pg 5

A Portable DC Voltage Standard Providing 10 PPM Transfer Accuracy. A new type of instrument transfers precision dc voltages out of the standards laboratory to working areas, by Robert E. Watson, pg 7-10. 735A.

[Author:] Robert E. Watson, pg 9

RFI Measurements Down to 10 kHz with Spectrum Analyzer Converter, by John Cardoza, pg 12. 851B, 8551B.

See Also: Correction: In the article “RFI Measurements Down to 10 kHz with Spectrum Analyzer Converter”, the mixer input ports in Fig. 4 are incorrectly labeled, page 4 in the May 1966 issue

[Author:] John Cardoza, pg 11

April 1966 v.17 n.8

Cover: 1.5 x 10^-8 Accuracy DC Voltage Divider Using New -hp- Standard Resistors

A New Distortion Analyzer with Automatic Nulling and Broadened Measurement Capability. A new audio-RF distortion analyzer has been designed which, when roughly pre-tuned, tracks the signal to be measured and automatically nulls the fundamental frequency allowing for a more consistent measurement and also over a wider frequency range, by Charles R. Moore, pg 2-7. 334A, 331A, 332A, 333A.

Design Leaders: Charles R. Moore, Terry E. Tuttle, Larry A. Whatley, pg 5

An Adjustable Standard Resistor with Improved Accuracy and High Stability. A new standard resistor designed in the -hp- Standards Laboratory can be set to within +-.015 ppm of nominal, substantially facilitating precision calibration work, by E. Paul Hubbs, pg 8-14. 11100.

Stability of Capacitively-Loaded Emitter Followers – a Simplified Approach. The following analysis shows that simple adjustment in bias current will often stabilize the circuit, by Glen B. DeBella, pg  16

[Authors:] Paul Hubbs, Henry T. Hetzel, pg 14; Glenn B. DeBella, pg 15

May 1966 v.17 n.9

Cover: Measurements made with a single new wide-range instrument: The Vector Voltmeter

The RF Vector Voltmeter – An Important New Instrument for Amplitude and Phase Measurements from 1 MHz to 1000 MHz. A broadband two-channel millivoltmeter and phasemeter simplifies many measurements heretofore often neglected, by Fritz K. Weinert, pg 2-9. 8405A.

Design Leaders: Roderick Carlson, Fritz K. Weinert, pg 9

Selected Vector Voltmeter Measurements, pg 10-12

A Portable Battery-Powered Multi-Function Meter with Lab-Quality Performance. A fully-portable laboratory instrument is useful from 1 hertz to 4 megahertz at levels to below 1 millivolt, by James M. Colwell, pg 13-16. 427A.

Design Leaders: James M. Colwell, Noel M. Pace, pg 14

Correction: In the article “RFI Measurements Down to 10 kHz with Spectrum Analyzer Converter”,  page 12 in the March 1966, the mixer input ports in Fig. 4 are incorrectly labeled, pg 4

June 1966 v.17 n.10

An Advanced New DC-25 MHz Oscilloscope for Programmed Production Testing. A new oscilloscope has the special capability of maintaining its dc baseline without drift which leads to higher dc accuracy and the important characteristic of being programmable, by John Strathman, pg 2-7. 155A.

Design Leaders: Charles House, Norman Overacker, John Strathman, Roy Wheeler, pg 7

Time Domain Reflectometry in 75-OHM Systems, by Charles A. Donaldson, pg 9

[Author:] Charles R. Donaldson, pg 9

Rise Time Converters for Simpler TDR Testing of Band-Limited Systems, by Lee R. Moffitt, pg 10-11. 10452A, 10456A.

Design Leader: Lee R. Moffitt, pg 11

A Calibrated Susceptance for TDR Measurements of Small Reactive Discontinuities, by Richard W. Anderson, pg 12-13. 874A.

Design Leader: Richard W. Anderson, pg 13

A DC-Stabilized Oscilloscope Plug-In with 50-mV/CM Sensitivity. Freedom from dc drift overcomes one of the most troublesome effects in making oscilloscope measurements of transducer output and other small signals, by James R. Pettit, pg 16. 1407A.

Design Leaders: Jim Pettit, Tom Schroath, pg 14

July 1966 v.17 n.11

A Sensitive new 1-GHz Sampling Voltmeter with Unusual Capabilities. A voltmeter operating on the principle of incoherent sampling measures over wide frequency and voltage ranges while providing an output usable for signal analysis, by Fred W. Wenninger, Jr., pg 2-8. 3406A.

Design Leaders: John T. Boatwright, Ronald K. Tuttle, Fred W. Wenninger, Jr., Roger L. Williams, pg 7

Coherent and Incoherent Sampling, pg 4

Measuring Attenuation, SWR, and Substitution Loss with a Low-Noise, High-Precision SWR Meter. Effects of noise and other factors are presented for an improved SWR Meter used with crystal and bolometer type detectors, by Bradford G. Woolley, pg 9-13. 415E.

[Author:] Bradford G. Woolley, pg 12

Increasing Instrument Sensitivity with a Low-Noise Preamplifier. A guide to a number of applications in which measurements are simplified by a low-noise wide-band amplifier, by Robert B. Bump, pg 14-16. 465A.

[Author:] Robert B. Bump, pg 15

August 1966 v.17 n.12

A New DC-50⁺ MHz Transistorized Oscilloscope of Basic Instrumentation Character. A small-size portable oscilloscope with negligible trace drift and using plug-ins has been designed as the keystone of a complete oscilloscope system, by Floyd G. Siegel, pg 2-11. 180A, 1801A, 1820A, 1821A.

Short, Large Screen, High-Frequency CRT, pg 4

Compact, Wideband, Stripline Delay Line, pg 7

Electronically-controlled Oscilloscope Camera, pg 10

Design Leaders: William L. Green, Floyd G. Siegel, James D. Williams, pg 11

World-wide Time Synchronization, 1966. Time scales maintained at the world’s time-keeping center have been correlated with new levels of precision in the latest around-the-world flying clock experiment, by LaThare N. Bodily, Ronald C. Hyatt, Dexter Hartke, pg 13-20. Flying clock, 5060A.

First Cesium-beam Resonator, pg 17

[Authors:] LaThare N. Bodily, Dexter Hartke, Ronald C. Hyatt, pg 19

The Benchmark, pg 20. Flying Clock, 5060A.

September 1966 v.18 n.1

A New Universal Impedance Bridge with Simplified, Semi-Automatic Tuning. By using feedback to adjust one bridge element automatically, a bridge requiring only one balancing control is achieved, by Katsumi Yoshimoto, pg 2-5. 4260A.

Design Leaders: Haruo Itoh, Kimijiro Kikuchi, Hitoshi Noguchi, Kazu Suzuki, Katsumi Yoshimoto, pg 5

A System for Automatic Control of the ‘DQ’ Resistor in an Impedance Bridge, by Hitoshi Noguchi, Haruo Itoh, Katsumi Yoshimoto, pg 6-9. 4260A.

Appendix: AC Bridge Loci, by Hitoshi Noguchi, pg 10

A Plug-in Unit for Extending Counter-Type Frequency Measurements to 12.4 GHz, by John N. Dukes, pg 11-13. 5255A.

[Author:] John N. Dukes, pg 12

New FCC Rules for FM Stereo Frequency Control, pg 14

A Frequency Comb Generator with a Range from 1 MHz to Beyond 5 GHz, by Roderick Carlson, pg 15-20. 8406A.

Design Leaders: Roderick Carlson, Harley Halverson, pg 19

Accurate Determination of a Signal Frequency on a Spectrum Analyzer, pg 17

October 1966 v.18 n.2

Cover: Cutaway view of major new 12 GHz Sampling Device

An Ultra-Wideband Oscilloscope Based on an Advanced Sampling Device. The state of the oscilloscope art has taken a significant forward step with the development of a new oscilloscope that operates from DC to 12.4 GHz and displays signals as small as 1millivolt, by Darwin L. Howard, Allan I. Best, James M. Umphrey, pg 2-7. 1425A, 140A, 141A, 1410A 1411A, 1430A, 1431A, 1432A, 1424A, 1425A, 1104A, 1106A, 1105A.

Design Leaders: Allan I. Best, Darwin L. Howard, James M. Umphrey, pg 7

Ultra-fast Triggering and Ultra-Resolution TDR, pg 9-10

Second Symposium on Test Instrumentation, pg 11

New NBS Laboratories, pg 11

A DC to 12.4 GHz Feedthrough Sampler for Oscilloscopes and Other RF Systems. An important circuit development in the form of an ultra-wideband sampling device is leading to major new capabilities in electronic instrumentation, by Wayne M. Grove, pg 12-15

[Author:] Wayne M. Grove, pg 15

A Summary of Some Performance Characteristics of a Large Sample of Cesium-Beam Frequency Standards, by LaThare N. Bodily, pg 16-19. Flying clock, 5060A.

[Author:] LaThare N. Bodily, pg 19

Operation of the Portable Cesium-beam Frequency Standard, pg 19-20

Frequency Standards in the Omega Navigation System, pg 20

November 1966 v.18 n.3

Cover: A Precision DC Differential Voltmeter and Ratiometer

A Simplified DC Differential Voltmeter and Ratiometer for High-Precision Measurements. An easy-to-use dc differential voltmeter measures dc voltages from 1microvolt to 1100 volts with a resolution of 0.2 microvolt and with high accuracy. This instrument is also a precision ratiometer for comparing two dc voltages, by Lawrence J. Lopp, Jr., pg 2-7. 3420A, 3420B.

Using the DC Differential Voltmeter/ratiometer to Construct a 100:1 Precision Divider, pg 6

Design Leaders: Larry L. Carlson, Lawrence J. Lopp, Jr., Robert E. Watson, pg 7

ADAC – An Automatic System for Measuring Hall Effect in Semiconductors. One of the barriers to detailed materials analysis has been the large effort involved in data acquisition and reduction. This has been greatly reduced in the -hp- laboratories by a system called ADAC. New information on the electronic transport properties of InAs has been one of the first benefits of the system, by Egon Loebner, T. J. Diesel, Cristy M. Schade, pg 9-14. Automatic Data Acquisition Contoller.

Analysis of Solids with more than one type of Carrier, pg 11

Typical ADAC Data Reduction Procedure, pg 13

Design Leaders: T. J. Diesel, Egon E. Loebner, Cristy M. Schade, pg 14

A Study of Indium Arsenide using ADAC Equipment, pg 15-16

December 1966 v.18 n.4

Cover: Tape Recorder Heads being aligned under microscope

A new High-Performance 1.5 MHz Tape Recorder. A new instrumentation-quality tape recorder has been designed around a current-rather than voltage-sensing input amplifier. Decreased noise and wider bandwidth are direct benefits of this approach, by Gerald L. Ainsworth, pg 2-7. 3950 Series.

[Author:] Gerald L. Ainsworth, pg 6

Magnetic Tape Recording and Reproducing, pg 4

Square Wave Response of The HP Model 3950 Magnetic Tape Recording System, pg 6

A Current Preamplifier for Magnetic Tape Playback Systems, by Arndt B. Bergh, pg 8-9

[Author:] Arndt B. Bergh, pg 9

Wideband Cavity-type Coaxial Frequency Meters. A discussion of the construction used to achieve the broad frequency range of the -hp- microwave cavity wavemeter, by Anthony S. Badger, Stephen F. Adam, pg 10-12. 536A, 537A.

[Author:] Anthony S. Badger, pg 12

Simplified Technique for Evaluating Diode RF Performance, by Bernard Levine, pg 13

[Author:] Bernard Levine, pg 13

Swept-Frequency SWR Measurements in Coaxial Systems. An important new swept-frequency technique permits quick and accurate measurements of SWR in coaxial systems up to 18 GHz, by Stephen J. Adam, pg 14-20

[Author:] Stephen F. Adam, pg 19

Standard Broadcast Frequency Offset for 1967, pg 19

January 1965 v.16 n.5

A new Instrumentation-Class Tape Transport of Simplified Design, by Walter T. Selsted

New Tape Transport in Sanborn Magnetic Data Recording Systems, pg 3. 3907A, 3914A, 3917A, 3924A.

Bernard Oliver elected IEEE President, pg 5

Design Leader: Walter T. Selsted, pg 7

Senior Staff Engineers Appointed by -hp- Board of Directors, pg 8. Brunton Bauer, Arthur Fong, Arthur Miller.

February 1965 v.16 n.6

New Coaxial Couplers for Reflectometers, Detection, and Monitoring. Coaxial couplers with flattened response and high directivity facilitate swept-type measurements of several kinds, by Robert Prickett. 796D, 797D, 798C, 774D, 775D, 776D, 777D, X781A, 786D, 787D, 788C, 789C.

New Waveguide Crystal Detectors with Flat Response, by Robert Prickett, Lawrence Renihan, pg 6. 424A.

Design Leaders: Robert J. Prickett, Lawrence Renihan, pg 8

Atomic Time Adopted for WWVB, pg 8

March 1965 v.16 n.7

The Linear Quartz Thermometer – a New Tool for Measuring Absolute and Difference Temperatures. A linear-temperature-coefficient quartz resonator has been developed, leading to a fast, wide-range thermometer with a resolution of .0001 C, by Albert Benjaminson. 2880A, 2801A.

The Linear Coefficient Quartz Resonator, by Donald L. Hammond, pg 3

Design Leaders: Donald L. Hammond, Albert Benjaminson, pg 7

The Influence of Transistor Parameters on Transistor Noise Performance – A Simplified Presentation. Some factors that define the noise characteristics of junction transistors have been investigated and are presented here in graphic form. The data illustrates the magnitude of the noise parameters and their variation with operating point, by Rolly Hassun, Michael C. Swiontek, pg 8-12

Authors: Michael C. Swiontek, Rolly Hassun, pg 12

April 1965 v.16 n.8

Correlating Time from Europe to Asia with Flying Clocks. By means of portable cesium-beam clocks, time has been correlated to 1 microsecond at many of the world’s timekeeping centers and a comparison of four of the world’s best-known ‘long-beam’ frequency standards has also been made, by LaThare N. Bodily

Author: LaThare N. Bodily, pg 8

May 1965 v.16 n.9

A Combined DC Voltage Standard and Differential Voltmeter for Precise Calibration Work. An advanced instrument that generates precise, high-resolution dc voltages for calibration work is also a precision differential dc voltmeter with a constant and very high input impedance, by Robert E. Watson. 740A.

Design Leader: Robert E. Watson, pg 7

Phase Comparisons with LF Standard Broadcasts Controlled by ‘Atomic Time’, pg 8

June 1965 v.16 n.10

A New 10c/s-10Mc/s Test Oscillator with Enhanced Output Capabilities. The performance possible with state-of-art techniques has been incorporated in a general-purpose test oscillator, by Myles A. Judd. 651A.

A Low-Distortion Amplifier Supplying 10 Watts Peak from DC to Beyond 1 Mc/s. A new amplifier has sufficient bandwidth to enable it to serve at dc or RF and sufficient power to be used as an electro-mechanical driver, by Robert J. Strehlow. 467A.

Amplifier Design Leader: Robert J. Strehlow, pg 8

Test Oscillator Design Leaders: Noel M. Pace, Myles A. Judd, pg 8

Cycles Per Second and Hertz, by Editor, pg 8

July 1965 v.16 n.11

A Low-Frequency Oscillator with Variable-Phase Outputs for Gain-Phase Evaluations. A new l-f oscillator provides both sine and square outputs as well as adjustable-phase sine and square outputs over a range from 60 kc/s down to 0.005 c/s, by Richard Crawford. 203A.

Design Leaders: Richard Crawford, Donald E. Norgaard, pg 7

Extraterrestrial and Ionospheric Sounding with Synthesized Frequency Sweeps, by George H. Barry and Robert B. Fenwick (of the Stanford University Electronics Laboratories), pg 8-12. 5100, 5110.

August 1965 v.16 n.12

A Fast-Reading Digital Voltmeter with .005% Accuracy and Integrating Capability. A new Digital Voltmeter of very high accuracy makes readings from less than 100 Vdc to 1000 Vdc at maximum speeds of up to 15 readings per second, by William McCullough. 3460A.

Guarded Measurements with a Floating Voltmeter, pg 5

Voltmeter Design Leaders: William McCullough, Edward Holland, pg 8

Cable Testing with Time Domain Reflectometry, pg 8

September 1965 v.17 n.1

A Precision Analog Voltohmmeter with Automatic Ranging. An automatic analog voltohmmeter simplifies dc voltage and resistance measurements and gives higher measurement accuracy and speed than is usually obtained, by James F. Kistler, pg 2-6. 414A.

Autovoltmeter Design Leaders: Donald F. Schulz, James F. Kistler, pg 5

A Simple Method for Recording Fast and Low-Level Waveforms. A recently developed oscilloscope plug-in unit makes fast, convenient records of displayed signals and greatly reduces accompanying noise, by John N. Deans, pg 6-8. 1784A, 175A.

Recorder Plug-In Design Leaders: Donald Braidwood, Alan D. Henshaw, Keith McMahan, pg 8

October 1965 v.17 n.2

A Precision AC-DC Differential Voltmeter/DC Standard with High Versatility. A versatile new instrument measures ac voltages with high accuracy from 20 c/s to 100 kc/s by comparing the unknown to a precision dc voltage. It also measures dc voltages to 0.02% and supplies high-resolution dc voltages, by William G. Smith, pg 2-7. 741A.

Design Leader: William G. Smith, pg 7

A 200 kc/s – 500 Mc/s Frequency Conversion Unit for Mixing, Modulating, Phase-Detecting and Level-Controlling. A new untuned mixer operates over the extremely wide frequency range from 200 kc/s to 500 Mc/s and uses a double-balanced circuit for high versatility, by Victor E. Van Duzer, pg 8-11. 10514A.

Design Leader: Victor E. Van Duzer, pg 11

500 kc/s-500 Mc/s Frequency Doubler, by Victor E. Van Duzer, pg 12. 10515A.

November 1965 v.17 n.3

A Voltage-Programmable Low-Frequency Function Generator with Plug-In Versatility. A new generator produces sine, square, and triangular signals as low as 0.01 hertz either unmodulated or with various modulations, by Robert L. Dudley, pg 2-5. 3300A.

Design Leader: Robert L. Dudley, pg 5

‘Hertz’ Adopted by IEEE, pg 5

The Trigger/Phase-Lock Plug-In. A plug-in for the low-frequency function generator results in a variety of signals in the 0.01 to 100,000 hertz range, by Robert L. Dudley, pg 6-9. 3302A.

NBS Standard Frequency and Time Broadcast Schedule. The diagrams presented here, with explanatory notes, summarize the standard frequency and time services, provided by the National Bureau of Standards radio stations WWV, WWVH, WWVB and WWVL, pg 10

A Technique for Making Ultra-Precise Measurements of Microwave Frequency Stability. Standard laboratory instruments are interconnected to provide a system that measures the short-term frequency stability of microwave sources to a precision of better than 1 part in 10, by James A. Marshall, pg 11-12

[Author:] James A. Marshall, pg 12

December 1965 v.17 n.4

Cover: Energy Diagram for Schottky Barrier

The ‘Hot Carrier’ Diode as an Ultra-Fast-Detector, Mixer, and Switch, pg 2. HP Associates.

Hot Carrier Diodes, pg 3

Using the Hot Carrier Diode as a Detector, by Hans O. Sorensen, pg 2-5

Using the Hot Carrier Diode as a Microwave Mixer, by Milton Crane, pg 6-8

[Authors:] Milton Crane, Hans O. Sorensen, pg 5

January 1964 v.15 n.5

An RMS-Responding Voltmeter with High Crest Factor Rating, by Gregory Justice. Crest Factor. 3400A.

See Also: Crest Factor and Pulse Trains…; Clarification of the closing paragraph in “An RMS-Responding Voltmeter With High Crest Factor Rating”, on page 8 in the April 1964 issue

The Significance of Crest Factor, pg 4

Long-term Stability of the -hp- 130C Sensitive DC-500 KC Oscilloscope, by John Strathman, pg 6-7. 130C.

Precision of the United States Frequency Standard, pg 7

-hp- Factory Training Seminars, pg 8

February 1964 v.15 n.6

Time Domain Reflectometry, by B. M. Oliver

Time Domain Reflectometry with a Plug-in for the 140A Oscilloscope, pg 8. 1415A.

TDR with -hp- Sampling Scopes, pg 8. 188A.

March 1964 v.15 n.7

Broadband, Solid-state Amplifiers, by Alfred F. Gort. 462A, 461A, 11038A.

An Air-Bearing Spindle for Highly Precise Machining, by Edward H. Phillips, pg 5-7

International System of Units, pg 8

April 1964 v.15 n.8

A new Instrument for Measuring Microwave Frequencies with Counter Accuracy, by Rudolph F. Pasos. 2590A.

A New DC-4000 MC Sampling ‘Scope Plug-In with Signal Feed-Through Capability, by Wayne M. Grove, pg 5-8. 188A.

Crest Factor and Pulse Trains… Clarification of the closing paragraph in “An RMS-Responding Voltmeter With High Crest Factor Rating”, page 1 in the January 1964 issue, pg 8

New Time Information Added to WWV/WWVH Broadcasts, pg 8

May 1964 v.15 n.9

A 0-50 Mc Frequency Synthesizer with Excellent Stability, Fast Switching, and Fine Resolution, by Victor E. Van Duzer. 5100A, 5110A.

Digital Frequency Synthesis, by Bernard M. Oliver, pg 1

Notes on the Application of Frequency Synthesizers, by Victor E. Van Duzer, pg 7

Spectrum Extension to Above 500 MC, pg 7

Synthesizer Design Leaders, pg 8

June 1964 v.15 n.10

Precision Plug-In Frequency Measurements to 3000 Mc, by Charles M. Hill. 5245L, 5254A, 5253B.

Design Leader: Charles M. Hill, pg 4

Changes in Standard Broadcasts, pg 5

A New Oscilloscope Plug-In with Four 40-MC Channels, by James R. Pettit, pg 6-8. 175A, 1754A.

July 1964 v.15 n.11

A New Performance of the “Flying Clock” Experiment, by Leonard S. Cutler, Alan S. Bagley. Atomic clock.

A Measurement of the Ratio of the Zero-Field Hyperfine Splittings of Cesium 133 and Hydrogen, by Leonard S. Cutler, pg 6-7.

Authors: Alan. S. Bagley, Leonard S. Cutler, pg 8

Plant Distribution of a One-Volt DC Standard, by Richard Bean, pg 9-12

August 1964 v.15 n.12

A New Microwave Spectrum Analyzer, by Harley L. Halverson. 8551A, 851A.

EMC/RFI, pg 5

Broad Spectrum Displays, pg 7

Spectrum Surveillance, pg 8

Design Leaders: Arthur Fong, Harley L. Halverson, George C. Jung, pg 8

September 1964 v.16 n.1

Our Preparations at Hewlett-Packard for the Instrumentation of Tomorrow, by Frank J. Burkhard. [HP’s 25th year as a designer and maker of electronic measuring instruments]

Some Major –hp- Instrument Designs, pg 3

Some Notable Articles Published in the Hewlett-Packard Journal, pg 5

Hewlett-Packard Company: William R. Hewlett, David Packard, pg 8

October 1964 v.16 n.2

A VLF Comparator for Relating Local Frequency to U.S. Standards, by Dexter Hartke. Phase Comparator, 117A.

Frequency Calibration using LF Standard Broadcasts, pg 2

Design Leader: Dexter Hartke, pg 7

Tunable VLF Comparator, pg 8. DY-2365B.

November 1964 v.16 n.3

Absorption Modulators for Simple or Complex Microwave Modulation, by Douglas A. Gray. P-I-N Modulators, 8403A.

New Microwave Signal Sources with Signal Generator Capabilities, by Douglas A. Gray, pg 8. 8614B, 8616B.

December 1964 v.16 n.4

Microwave Harmonic Generation and Nanosecond Pulse Generation with the Step-recovery Diode, by Robert D. Hall, Stewart M. Krakauer. HP Associates.

Design Leaders: Robert D. Hall, Stewart M. Krakauer, pg 6

January/February 1963 v.14 n.5-6
A Versatile Wave Analyzer for the 1 kc to 1.5 Mc Range, by Stanley McCarthy. 310A.

A Quick, Convenient Method for Measuring Loop Gain, by Philip Spohn, pg 5. AC-21F.

March/April 1963 v.14 n.7-8
A New Microwave Modulator, by Nicholas J. Kuhn. 8714A.

A Convenient Probe for Sensing Magnetic Fields, by Arndt Bergh, pg 7. 3592A.

Using the Smith Chart with Negative Real-part Impedances or Admittances, by Harley L. Halverson, Luiz Peregrino, pg 8

New Submultiple Prefixes, pg 8

May/June 1963 v.14 n.9-10
A New Multi-Function Voltmeter for General Laboratory Use, by Paul G. Baird. 410C.

A Guarded Amplifier for Increasing Digital Voltmeter Sensitivity, by Donald H. Jenkins, pg 6. DY-2411A, DY-2401A.

July 1963 v.14 n.11
An 800-2400 MC Signal Generator with Automatically-Leveled Output Power, by James R. Ferrell. 8614A.

A Variable-Frequency AC Power Supply for General-Purpose Testing, by Duane P. Lingafelter, pg 6. 4301A.

August 1963 v.14 n.12
A Wide-Range RC Oscillator with Push-Button Frequency Selection, by Robert W. Colpitts. 241A.

Special Push-Button Audio Oscillator for Telephone Testing, by Robert W. Colpitts, pg 6. HO1-241A.

A Tunnel-Diode Pulse Generator with 0.1 Nanosecond Risetime, by Roderick Carlson, pg 7. 213B.

September 1963 v.15 n.1

A Basic New Wide-Band Oscilloscope with Planned Anti-Obsolescence, by Richard E. Monnier. 140A, 1415A.

The Time Domain Reflectometer, by Lee R. Moffitt, pg 6-7. 1415A.

The Radial Field Cathode-Ray Tube, pg 7

Amplifier Plug-ins, pg 8-9. 1401A, 1400A, 1403A, 1402A.

SweepGenerator Plug-Ins, pg 10-12. 1420A, 1421A.

October 1963 v.15 n.2
A General-Purpose Pulse Generator Producing High-Power, Fast-Rise Pulses, by Johan Blokker, George Kan. 214A.

A Clip-on Current Probe for Wide-band Oscilloscope Measurements, by John G. Tatum, pg 5. 1110A, 1111A.

NBS Inaugurates Higher Power VLF Standard Frequency Broadcasts, pg 8

November 1963 v.15 n.3
A New Multi-Purpose Digital Voltmeter, by Charles W. Near, David S. Cochran. 3440A.

Voltmeter Plug-ins, pg 3. 3441A, 3442A.

A New Coaxial Crystal Detector with Extremely Flat Frequency Response, by Russell B. Riley, pg 8. 423A.

December 1963 v.15 n.4
A New Series of Microwave Sweep Oscillators with Flexible Modulation and Leveling, by Robert L. Dudley. 691A, 691B.

Examination of the Atomic Spectral Lines of a Cesium Beam Tube with the -hp- Frequency Synthesizer, by Leonard S. Cutler, pg 8

January 1962 v.13 n.5
The Transistorized RC Oscillator, by David S. Cochran. 204B.

New One Watt TWT Amplifiers for more rapid Microwave Measurements, by George W. C. Mathers, pg 4-6. 489A, 491C, 493A, 495A.

February 1962 v.13 n.6
A New Digital Voltmeter Having High Rejection of Hum and Noise, by R. A. Andersen. 2401A.

A Versatile Digital Recorder for BCD Data, by Ed A. Hilton, pg 5. 562A.

A Digital-to-Analog Converter with High Output Resolution, by Ed A. Hilton, pg 8. 580A.

March 1962 v.13 n.7
A New Scope Plug-In for Convenient Measuring of Fast Switching Times, by Kay B. Magleby. 186A.

The Kilomegacycle Sampling Oscilloscope, by Roderick Carlson, pg 4. 185B, 187B.

A Digital System for Automatic Measurements of Switching Times, by H. C. Stansch, pg 6. DY-5844C.

April 1962 v.13 n.8
A New 50 MC Oscilloscope Based on an Advanced CRT Design, by Floyd C. Siegel. 175A.

Vertical Plug-Ins, pg 4. 1750A, 1752A, 1753A.

Horizontal Plug-Ins, pg 5. 1780A, 1781A, 1782A, 1783A.

May/June 1962 v.13 n.9-10
A Phase-Locking Synchronizer for Stabilizing Reflex Klystroms, by Albert Benjaminson. DY-2650A,

A New Wide-Application Klystron Power Supply, by Robert C. Allan, pg 5. 716A.

An Oscilloscope Camera with "Black Light" Graticule Illumination, by James A. Chesebrough, pg 8. 196B.

July 1962 v.13 n.11
The Present Attainments of Adjustable Power Supplies. Harrison Laboratories.

Representative List of Harrison Power Supplies, pg 8

August 1962 v.13 n.12
A DC-500 KC Oscilloscope with Extended Measurement Capabilities, by John Strathman. 130C.

September 1962 v.14 n.1
A New Generation of High-Speed Frequency Counters, by Tracy S. Storer, Charles M. Hill. 5243L, 5245L, 5251A, 5253A, 5261A, 5262A.

Counter Plug-ins, pg 4. 5251A, 5253A, 5262A, 5261A.

October 1962 v.14 n.2
A New Pulse Generator with Very Fast Rise Time, by Charles O. Forge. 215A.

Measuring Small, Stray L and C with Nanosecond Pulses, by Charles O. Forge, pg 6

November/December 1962 v.14 n.3-4
A Solid-State Operational Amplifier of High Stability, by Robert J. Strehlow. DY-2460A

Amplifier Plug-Ins, pg 3. DY-2461A-M1, DY-2461-M2, DY-2461A-M3, DY-2461A-M4.
 
A Portable Frequency-Response Test Set, by Don A. Wick, pg 6. 3550A.

A New Frequency Counter Plug-In Unit for Direct Frequency Measurements to 510 MC. 525C.

Two New Microwave Frequency Doublers for Extending Signal Sources to the 18-40 KMC Range, pg 3. 938A, 940A, K422A, R422A.

February 1961 v.12 n.6

Two Versatile new Power Supplies for High Power Semiconductor Work, by E. Robert Aikin. 722AR, 723A, 726AR.

March 1961 v.12 n.7

Increasing Accuracy in -hp- Meters Through Servo Calibrating Methods, by Bernard M. Oliver. 400H, 411A, 412A, 425A.

April 1961 v.12 n.8

Two New Militarized Oscilloscopes Having Both Horizontal and Vertical Plug-Ins, by George F. Fredrick. 160B, 170A, 162A, 162D, 162F, 166B, 166C, 166D.

Horizontal Plug-Ins, pg 4. 166A, 166B, 166C, 166D.

Vertical Plug-Ins, pg 6. 162A, 162D, 162F.

May 1961 v.12 n.9

Two New Transistorized Frequency Counters with Increased Readout and Low-Frequency Capabilities. 5212A, 5512A, 5232A, 5532A.

Digital or Analog Recording of Counter Measurements, pg 5. 562A, 580A.

June 1961 v.12 n.10

A Microwave Power Meter with a Hundredfold Reduction of Thermal Drift, by R. F. Pramann. 431A, 478A, 486A.

A New Low-Cost DC Fan for Cabinet Cooling, pg 6. Paeco 8-1003.

July/August 1961 v.12 n.11-12

A Parallax-Free No-Glare CRT for -hp- Oscilloscopes, by Bertrand W. Squier, Jr. Cathode ray tube.

A New DC-450 KC Oscilloscope using the Internal-Graticule CRT. 120B.

September/October 1961 v.13 n.1-2

A New SWR Meter with High Gain-Stability, by Darwin L. Howard. 415C.

November/December 1961 v.13 n.3-4

Broader Information Capabilities in the Clip-On DC Milliammeter, by Donald E. Barkley, Arndt Bergh. 428B

Large-Aperture Clip-On Probe, pg 3

Magnetic Ink Testing, pg 4

An Instrument for Automatically Measuring Frequencies from 200 Mc to 12.4 GC, pg 5. Dymec, Inc., DY-5796.

January/March 1960 v.11 n.5-7

A Versatile New DC-500 MC Oscilloscope with High Sensitivity and Dual Channel Display, by Roderick Carlson. 185A, 187A

High-Speed Effect in Solid-State Diodes Explained with New Oscilloscope, pg 3

Permanent X-Y Recordings of Displayed Signals, pg 7

April/June 1960 v.11 n.8-10

The Effect of u-Circuit Non-Linearity on the Amplitude Stability of RC Oscillators, by Bernard M. Oliver

Utilizing VLF Standard Broadcasts with the -hp- Frequency Divider and Clock, pg 8. 113AR.

[France’s President Charles] De Gaulle Visits -hp- Plant, pg 3

July/August 1960 v.11 n.11-12

A New Clip-on Oscilloscope/Voltmeter Probe for 25ÙÚ – 20 MC Current Measurements, by Charles O. Forge. 456A.

The Value of AC Current Measurements, pg 5

September 1960 v.12 n.1

A New RF Millivoltmeter for Convenient Measurements to 1 Kmc, by Theodore C. Anderson. 411A.

October 1960 v.12 n.2

A Voltage-to-Frequency Converter for Greater Flexibility in Data Handling, by R. A. Andersen. Dymec, Inc., 2210, 2211A, 2211B.

Dymec – An -hp- Service for Special Instrumentation Situations, pg 3

November 1960 v.12 n.3

A New Frequency/Time Standard with 5 x 10-10 Day Stability, by Leonard S. Cutler. 103AR.

December 1960 v.12 n.4

Improved Sweep Frequency Techniques for Broadband Microwave Testing, by Elmer Lorence, J. K. Hunton

January 1959 v.10 n.5

A New Digital DC Voltmeter with Automatic Range and Polarity Selection, by Theodore C. Anderson, Noel M. Pace. 405AR.

February/March 1959 v.10 n.6-7

Additional Conveniences for Noise Figure Measurements, by Marco R. Negrete. 343A, 340B, 345B, 342A, 347A.

April 1959 v.10 n.8

Special-Purpose Performance in a General-Purpose 50 KC-65 MC Signal Generator, by Arthur Fong. 606A.

Gaither Elected to -hp- Board of Directors (H. Rowan Gaither, Jr.), pg 6

Friis becomes Consultant (Dr. Harold T. Friis),  pg 6

May/June 1959 v.10 n.9-10

A Clip-On Oscilloscope Probe for Measuring and Viewing Current Waveforms, by Robert R. Wilke. 150A, 154A.

July/August 1959 v.10 n.11-12

A Precision DC Vacuum-Tube Voltmeter with Extended Sensitivity and High Stability, by Donald Norgaard. 412A.

September/October 1959 v.11 n.1-2

A New 20 CPS-50 KC Wave Analyzer with High Selectivity and Simplified Tuning, by J. R. Petrak. 302A.

Measuring Microwave Tube Electrode Coefficients with an Audio Wave Analyzer, by Harley L. Halverson, pg 5

November/December 1959 v.11 n.3-4

A New Clock for Improving the Accuracy of Local Frequency and Time Standards, by Dexter Hartke. 113AR.

January 1958 v.9 n.5

An Automatic Noise Figure Meter For Improving Microwave Device Performance, by Howard C. Poulter. 340A, 345A, 347A.

Noise Figure and Its Measurement, by B. M. Oliver, pg 3

February 1958 v.9 n.6

Increased Operational Simplicity In a New DC-Several Hundred KC Oscilloscope, by Duane Dunwoodie. 120A.

New HP Research and Development Divisions, pg 6

March 1958 v.9 n.7

An Increased-Sensitivity Micro Volt-Ammeter Using a Photoconductive Chopper, by John M. Cage. 425A.

April 1958 v.9 n.8

A Precision Delayed-Pulse Generator for Measuring and Generating Short Time Intervals, by Marvin Willrodt, Don Broderick, Dexter Hartke. 218A, 219A, 219B, 219C.

May 1958 v.9 n.9

A Fast, Automatic Printer for Digital Type Data Devices, by Ed A. Hilton. 561A.

A Current-Limiting Regulated Power Supply for Transistor Work, by Donald F. Schulz, pg 4. 721A.

June/July 1958 v.9 n.10-11

A Clip-On DC Milliammeter for Measuring Tube and Transistor Circuit Currents, by Arndt Bergh, George S. Kan, Charles O. Forge. 428A.

-hp- Board of Directors Enlarged, pg 4.

August 1958 v.9 n.12

An Automatic DC to X-Band Power Meter for the Medium Power Range, by B. P. Hand. 434A.

September/October 1958 v.10 n.1-2

A Dual-Trace Automatic Base Line Oscilloscope for the DC-Several Hundred KC Range, by John Strathman. 122A.

Two High-Performance Attenuators For the DC-500 MC Range, by Arthur Fong, Harley L. Halverson, pg 3. 355A, 355B.

November/December 1958 v.10 n.3-4

5×10-8/Week Time Base Accuracy in the 10 MC Frequency Counter, by Leonard S. Cutler, LaThare N. Bodily. 524D.

Assuring Time Base Performance, pg 5

January 1957 v.8 n.5

An RC Oscillator that Covers the 20 cps-20 kc Range in a Single Dial Sweep. 207A.

Design Principles of the 1001:1 Range Single-Band RC Oscillator, by Nicholas Kovalevski, B. M. Oliver

February 1957 v.8 n.6

A New 8-12 KMC Voltage-Tuned Sweep Oscillator for Faster Microwave Evaluations, by P. D. Lacy, Daniel E. Wheeler. 686A.

Backward Wave Oscillator Tubes

March 1957 v.8 n.7

A Fast Digital Recorder with Analog Output for Automatic Data Plotting, by Alan S. Bagley, Ed A. Hilton. 560A.

Operation of the Digital Recorder

April 1957 v.8 n.8

A 250 CPS-100 KC Oscillator For High Stability Applications, by Albert Ennor, Edna MacLean. 200T.

How Model 200T Stability Curves were Plotted

Higher Accuracy in Measuring Audio and Sub-Audio Frequencies, by Albert Ennor. 526C.

May/June 1957 v.8 n.9-10

A Note on Measuring Coaxial Coupler Directivity, by Howard C. Poulter

High DB-Resolution Meter Scales for -hp- VTVM’s. 400D-DB, 400H-DB.

July 1957 v.8 n-11

A Small, Convenient Frequency Counter For General-Purpose Use, by Frank Koziuk. 521C, 508A, 508B.

Some Handy uses for the -hp- 650A Test Oscillator, by Arthur Fong. 650A.

August 1957 v.8 n.12

A Rack-Mounting DC-300 KC Oscilloscope With Expandable Sweep, by Duane Dunwoodie, Dick Reynolds. 130BR.

September/October 1957 v.9 n.1-2

Permanent Record and Oscilloscope Techniques with the Microwave Sweep Oscillator, by Peter D. Lacy, Daniel E. Wheeler. 686A.

Supplement to Vol.9 N.1-2 [inside issue]

Sputnik’s Doppler Shift Measured and Recorded with -hp- Counter and Digital Recorder

November/December 1957 v.9 n.3-4

An Improved Method For Measuring Losses in Short Waveguide Lengths, by Peter D. Lacy, Kenneth E. Miller

Derivation of Waveguide Small-Loss Equation, pg 3

How Doppler Shift Records Provide Satellite Range and Height Data, pg 5