iPhoned this in!
On Jan 23, 2019, at 8:43 PM, Paul Koning via cctalk <cctalk@classiccmp.org>
wrote:
> On Jan 23, 2019, at 5:37 PM, Noel Chiappa via cctalk <cctalk@classiccmp.org>
> wrote:
>
> In response to a request a couple of years back from Cindy, I've been slowly
> working on a page to help scrappers identify PDP-11's, and give them an idea
> what to look for. I have it _mostly_ done:
>
> http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/PDP-11_Models.html
>
> Comments/error-checking etc welcome. Also, I still need images of a few
> things: -11/60 and -11/94 front consoles, the original LSI-11 card, the
> KDJ11-E, and most of the DEC QBUS boxes. (Yeah, I could try looking for free
> images, I've been busy!)
>
> Any help gratefully received!
>
> Noel
Google "pdp11/60" turns up some good pictures, one showing the console panel
closeup is from a UK computer museum.
The 11/44 picture is a bit strange looking because the innards show through the
perforated panel, which is probably not how it would be perceived by most
observers when just looking at one. The same goes for the 11/24. It seems
like a problem caused by taking the photo with flash; lit by ambient light it
would probably look better.
PDP11/84 and I think 94 also can be found on the cover of some of the Handbooks
in Bitsavers.
A variant of the LSI-11 is the H-11 sold by Heathkit. Is that actually the
same board? Either way it would be worth mentioning
The heath h11 and the lsi11 are
The same right down to the handle. The prime difference
Is the heath backplane is smaller number of slots and user assembled along with
the case and power supply. The memory, io, and disk system
was all heath and could be used in dec backplanes and DEC cards in heath. The
heath disk was RX01 comparable and could format media.
Allison
Do you want to show the PRO system boards? And maybe the I/O boards? Those
both are quite different looking, especially the I/O boards with their odd
connector and differing number scheme. (PRO boards are marked with the ROM ID
number, a 16-bit value shown in 6 octal digits.)
In the discussion of boards, you might mention that "FLIP CHIP" often appears
(on older boards? All boards? Many boards regardless of age?). And there
will be a "digital" logo, the 7-box kind. And the handles are either plastic
or metal as shown, but either way always have a module number on them. If it
looks like one of those cards but doesn't have a module number, or it's a large
logic board with a white handle, it's probably from some other company though
it may well be a DEC-compatible board.
The "Miscellaneous Digital Equipment Corporation PDP-11 Information" link lands
me on a "Forbidden" error page.
paul
