This really takes me back to 1986-88 when I worked on these systems:
This is a 3000 Series 42, with a 7980 9-track tape drive (HP-IB) and
two 7959B (304MB) HP-IB hard discs. The peripherals are not quite period
appropriate for the CPU - it would typically be used with a 7970 tape
drive and 7925 or 7935 discs. I used to take the 1MB memory boards,
resolder some jumpers, remove the 16Kb RAM chips and repopulate with 64Kb
chips to turn them into 4MB boards.
The HP3000 systems were designed with ease of maintenance in mind. I
wouldn't mind finding a Series 42, one of these days.
Mike Loewen mloewen@...
Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/