Hewlett Packard 16602A Logic Analyzer

I purchased this 102 channel Logic analyzer from Italy through eBay as working, although I had to re-install the software to make it usable, for which I had to purchase an SCSI CD-ROM drive.

Internally it's an HP PA-RISC based computer running HP-UX with the logic analyzer software running on an X-windows server.

This makes it an ideal troubleshooting tool for my retro work:

• At a maximum sampling rate of 250mhz, it's much faster than any computers I work on
• 102 channels is more than enough to analyse even large 24-bit address / 16-bit data busses
• Because the software can run on any X server, I can run it directly on my MacBook or Linux machines
• No integrated screen means more available desk space

Work done:

• Inspect internals
• Re-install OS

Planned work:

Maybe one day I will do the following modifications to reduce the (substantial) noise:

• Replace fans with low noise versions
• Replace HDD with SCSI2SD

Exterior inspection:

The exterior was in good shape, just needed a good cleaning

Interior

The inside was pretty much dust free and in great shape:

At some point in the future, I might replace the fans with low noise versions and the hard disk with a SCSI2SD to reduce the amount of noise.

Re-installation

To re-install the system, I purchased an SCSI CD-ROM drive, which I temporarily installed inside an external enclosure:

After some initial failures, the installation was successful: