[rescue] Wanted, HP9816 Computer

[Chris Quayle]

I've  been using an HP9816 computer for hpib sw development. Not used
for  while, and now comes up with a fault on the text or graphics
boards. When cold, get a bleep error on power up, which changes to a
partially painted screen and cursor, when warmed up. Keyboard
advances the cursor, but no characters visible. Replaced the 6845
but the fault persists.

I need to have this machine working as it's used as a gpib reference
model for some os software i'm writing to talk gpib via a prologix
network - gpib adapter. I can trap and reverse engineer the bus
transactions and timing with a logic analyser. There are other old hp
models with gpib, but the 9816 is self contained and compact enough
to sit on the bench and has the HP Basic rom card for quick tests, as
well as being a neat little machine anyway. I lusted after one of this
model on release, 68000 cpu etc, but could never afford one.

Already did a load of work some years ago to replace the memory, turned
pin sockets and ceramic 64k x 1 devices. Looking to buy or swap another
complete machine to do board swaps, or just the text and graphics
boards that sit in the display section. Have a variety of old Sun boxes
for swap if of any interest. In the UK, any ideas welcome ...

Chris