HP85A Stuff - test-drb@ccmp.vtda.org

13 May 1998

Greg Troutman &lt;mor(a)crl.com&gt; wrote:
...
  I spent a little more time on this guy and have
finally gotten the tape
 drive to work--sorta.  The rubbery roller in the center to the left of
 the head is seriously corroded away (as if some anti-rubber solvent or
 high heat came in contact with it) which makes it not work too well.  
The rubbery bits used on these drives seem to be going gooey, at least
out here in the San Francisco Bay Area.  It's also happening to 
the similar drives used in HP264x terminals.  (Gotta get around to
fixing that one on my desk....)

...
  Now, questions:  I have a ROM Drawer filled with six
option ROMS like
 Assembler, Input/Output, Mass Storage, etc.  First, how do I implement
 the physical link to the I/O devices?   
You need an I/O card of the appropriate type to plug into another one
of those slots on back.  HP-IB is fairly common and is what you would
use to hook up disk drives.

-Frank McConnell