VAX 780 on eBay

Jon Elson elson at
Sat Jan 1 16:42:59 CST 2022

On 1/1/22 2:44 PM, Guy Dunphy via cctalk wrote:
>> The 'installation and configuration' manual for this machine would be huge. They don't have it.
On bitsavers.  I just paged through it to check power 
>> Plus, it's a mainframe. Not even any blinkenlights. Without setting it up as a complete system
>> with everything interconnected properly, how would you even know it was running correctly?
Well, you need to hook up a serial console terminal, and the 
console floppy needs to work.  That has power-up self tests, 
which will be quite helpful in the beginning.  Then, there 
would be a diagnostic tape that could run further detailed 
>> Plus you can safely assume at least some of the system unit interconnect cables are missing.
These should all be in the manuals on bitsavers.  I'm pretty 
sure they have the complete /780 print set, which was 11x17" 
and about 2" thick!
>> Potentially weeks, even months of restoration work for a buyer, before even daring to apply power.
>> Then if there's anything wrong in the electronics, good luck diagnosing and getting spare parts.

Yes, getting a copy of the diags tape would be hugely 
helpful, but probably somebody has that.


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