On Mon, Feb 22, 2016 at 10:28 AM, Mark J. Blair <n...@nf6x.net> wrote: > When I was debugging the connection between my VAX and tu58em on my Mac, I > ended up buying an old serial protocol analyzer. Notably, I specifically > avoided one with the same type of tape drive; I got one with a nice, reliable > 3.5" floppy drive! ;)
HP 4952? I have two with tapes from the old days (they contain a formatter, and we did wipe some scratch tapes for storage of our analyzer programs, including a PU Type 2 BIND simulator that filled the program memory, but it worked well enough for us to debug SNA BIND sequences in the absence of a real PU Type 4). -ethan