Table of Contents
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 mcguire@mcguirescientificservices.com for assistance.
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Serial number format
One very common format for serial numbers is structured thus : (from an early-90's service manual)
In the form1234A00123; 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”.
Amplifiers
Component Measurement
Counters
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)
Nuclear
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