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Hewlett Packard / Agilent / Keysight Test Equipment

This site serves as a repository of information about Hewlett Packard, Agilent, and Keysight test equipment. It is an enthusiast project, and is not associated with or controlled by any company or corporate entity.

This site is new as of June 2020, and material is being added as time permits. This is a community effort; if you would like to contribute, please register for an account, or contact Dave McGuire for assistance.

Please follow our Contribution Guidelines when adding material.

Model Number Index

Serial number format

One very common format for serial numbers is structured thus : (from an early-90's service manual)

In the form 1234A00123 ; the first four digits and the letter are the serial number prefix. This prefix is the same for all identical instruments; it changes only when a change is made to the instrument. The last five digits (00123) form the suffix that is unique to each instrument.

In addition, it seems that there is a strong correlation between the first part and datecodes found elsewhere (e.g. firmware revisions); something like 3449A decodes as “week 49 of 1994”.


Component Measurement


Data Generators & Data Analyzers

Analog Voltmeters & Multimeters

Other Analog Meters

Digital Voltmeters & Multimeters

Frequency & Time Standards

Frequency, Function, & Waveform Synthesizers

Hewlett Packard Interface Bus

HP Internal Use Equipment

Logic Analyzers and Digital Troubleshooting

Network analyzers (VNA, Scalar, etc)


Oscilloscopes and Waveform Analyzers

Power Supplies

Preselectors & Preamplifiers

Pressure & Temperature

Pulse Generators

RF Power Meters and Sensor Heads

RF and Microwave Accessories

Signal and Spectrum Analyzers

Signal Generators

Voltage References & Calibrators

start.txt · Last modified: 2023/11/27 18:23 (external edit)

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