I read the posts but had no time to study the schematics. At the moment my
knowledge about the HP Series 8x is very basic. First I have to repair my
capstan to load some tapes. Next will be to find a HPIB/GPIB expansion-board
and some sort of disk drive. There are a couple of interesting plotters on
ebay, but all of them over the pond in USA and shipping would be way to
expensive. It'd surely be fun to control some of my lab-instruments with the
'85 as some of them have HPIB built in.
--
Wolfgang Eichberger - OE5EWL
Operating System Collector
Blog: 
  Well done Wolfgang,
 I've been trying to help a guy here in New Zealand with one with my limited
 technical knowledge (see:
http://www.classic-computers.**org.nz/forums/viewtopic.php?f=**11&t=373…)
 It seems he has pretty limited electronics skills though and it may be a
 bridge too far.
 Terry
 ----- Original Message ----- From: "Wolfgang Eichberger" <oe5ewl at
gmail.com
  
 To: <cctalk at classiccmp.org>
 Sent: Friday, July 22, 2011 7:22 PM
 Subject: New in collection: HP-85a
  Hi folks,
 today I got a HP-85a for my collection (got it from a workmate whose
 father
 died recently). It's in good physical and optical condition, very little
 signs of use. With the machine came 2 tape carts, one 16k mem-board, a
 spare
 roll of thermal paper, the user manual and a BIG carrying-case for the
 machine and the parts. After a quick check (psu) I turned the whole thing
 on
 and - whoopee, it's behaving like as it was new :D
 Sorry for the spam, but I wanted to share my happyness.
 Regards,
 Wolfgang
 --
 Wolfgang Eichberger - OE5EWL
 Operating System Collector
 Blog: 
5ewl.blogspot.com
 Homepage: 
www.eichberger.org