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@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