Vintage systems.
Measured, documented, understood.
Technical notes, restoration logs, interface projects, and software experiments from a working collection of classic computers.
On the bench
Current investigations and platform documentation.
HP-85 HP-IB Interface
A bench project focused on understanding, documenting, and testing the HP-85's connection to HP-IB instruments and peripherals.
Open project ->HP-85
An integrated technical computer combining keyboard, CRT, thermal printer, tape storage, and BASIC in a compact instrument-like enclosure.
Open project ->HP 9000/360
A Series 300 engineering workstation built around Motorola's 68030, designed for HP-UX, technical graphics, and laboratory computing.
Open project ->Apple IIe
Apple's long-lived 8-bit platform, with a highly accessible expansion bus and a hardware design that rewards close study.
Open project ->Engineering the archive
Observe
Photograph assemblies, record configurations, and preserve the as-found state.
Measure
Verify rails, signals, clocks, and interfaces against primary documentation.
Restore
Make conservative, reversible repairs with every intervention documented.
Publish
Turn bench notes into useful references, schematics, and repeatable procedures.