Hi and what are these?

[Justin Keogh]

Yes, only one has the HP logo. Brent Hilpert ID'd it as a HP21xx series extender.

The other, idk (yet), but as you said it could be for anything.

-J


Quoting Sean Caron (2015-04-23 23:14:54)
> They look like diagnostic extender boards to me, for field service... Only
> one card is marked with the HP logo?
> 
> These would allow you to run a card outside of the chassis of whatever
> device they were designed to service s.t. you could probe test points while
> it ran, or if you wanted to probe at the bus, you could bring the signals
> out from the chassis, which might have been difficult to fit probes in.
> 
> These could have gone with practically anything... there's probably as much
> or better a chance that they are for use servicing a piece of test
> equipment (i.e. oscilloscope, spectrum analyzer, network analyzer, ...)
> than a computer.
> 
> Best,
> 
> Sean
> 
> 
> On Thu, Apr 23, 2015 at 6:56 PM, Justin Keogh <cctalk at v6y.net> wrote:
> 
> > Hey everyone, I am new to the list, have a collection of 60's and 70's
> > hardware I am slowly selling, but these have me stumped (I am not an expert
> > in vintage computing):
> >
> > http://imgur.com/0SHTT9A
> > http://imgur.com/lJXbLjf
> > http://imgur.com/uPasyFE
> > http://imgur.com/W3eHes1
> > http://imgur.com/A5GuF4Z
> > http://imgur.com/Wp2jKOb
> > http://imgur.com/KEiE9It
> > http://imgur.com/okDQVJQ
> >
> >
> > Anyone know what either of them are called or what system(s) they go to?
> >
> > Sometime in the next month or so, I will be auctioning off a complete
> > (working) Data General Nova 2, along with a few other very rare (from my
> > searches on this list) big items.
> >
> > Thanks!
> >
> >
> > -Justin Keogh
> > http://www.ebay.com/usr/jkeogh0
> >
> >