Chicago Test equipment sale???

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Tue May 25 17:56:22 2004

> I hesitate to post the following list, but since you asked...

[...]

> HP 3000 Model 226 Computer
>
> HP 85 Computer
> HP 87 Computer
>
> HP 9100A Calculator (with top-mounted printer)
> HP 9100B Calculator (with top-mounted printer and cover)
> HP 9101A Memory Expansion
>
> HP 9121 Dual Disk Drive
>
> HP 9810A Calculator
> HP 9820A Calculator (quantity 2)
> HP 9821A Calculator
>
> HP 9825A Calculator/Computer
> HP 9825B Calculator/Computer
>
> HP 9826 Computer (quantity 2)
>
> HP 9878A Expansion Unit
>
> HP 9915 Computer (unfortunately no keyboard)

The comment 'wow' springs to mind. Those 9100s, 9810, 9820s and 9821 were
real finds. The latter, in particular, is hard to find!.

Should you need any help getting them going, I've got a fair amount of
information on the 9100B and 9810 (oh, and 9825, 9915). Some of it might
be applicable to the 9820 too (the processor, main backplane, PSU,
printer, card reader and ROM module backplane are the same between the 9810
and 9820, the keyboard, display, I/O backplane, and the memory box and
its PCBs are different).

As I am sure you're aware, the 9915 keyboard is just an array of
switches. I can look up the details if you want to have a go at wiring
one up.

-tony
Received on Tue May 25 2004 - 17:56:22 BST