I couldn't see it on BAMA of K04BB but there are others.
The other possibility is to pull and read the ROMs - sometimes HPIB
commands show up as literal text.
On Thu, Nov 7, 2024 at 9:56 PM Sytse van Slooten via cctalk <
cctalk(a)classiccmp.org> wrote:
  Yeah I saw that, but I'm a bit reluctant to
blindly pay USD 50 for
 something that might not even have any detail on what I'm looking for.
 After all, I don't need a full manual, and certainly not a collector-worthy
 copy. I just need this specific information.
  On 7 Nov 2024, at 22:30, Wayne S
<wayne.sudol(a)hotmail.com> wrote:
 There are some available on ebay. Just search “hp 2640b”
 Sent from my Dec Alphastation 200.
> On Nov 7, 2024, at 11:41, Sytse van Slooten via cctalk <
 
 cctalk(a)classiccmp.org> wrote:
 >
> Hi all,
>
> I have a HP 1640B that I'm trying to get to work. However I can't find
 
 any information about it, and while the machine itself it straightforward
 enough (and I remember enough from when I was using it in my first dayjob)
 I can not find anything about how to use the GPIB interface that it has.
 >
> The reason I'm interested is, we've finally managed to add GPIB support
 
 to the PDP2011-MINC fpga implementation, and I'd like to test against a
 different target than the relatively modern Philips/Fluke counter I'm now
 using. And the 1640B is the only other GPIB instrument I have...
 >
> The HP doesn't seem to know the ID? command (that causes an error
 
 message on the screen). It does respond to a newline (the standard
 is-this-listener-present test that the MINC code implements), so at least
 something is working.
 >
> Does anyone here have any docs on the HP 1640B? It'd be very helpful at
 
 least to know which GPIB commands are implemented.
 >
> thanks in advance!
>
> Sytse