Strange DEC stuff.

[jim stephens]

On 10/16/2019 1:09 PM, Mattis Lind via cctalk wrote:
> An ex-DEC engineer offloaded some strange stuff that was going to the skip.
> I just thought I could have a look. But what is it?
>
> There is two backplanes marked KA14 and BE14. I thought it was the PDP-14,
> but I am not sure really.
Bitsavers Options_and_Modules_List_197406.pdf contains the BE14 and KA14 
as PDP 14, I'd guess that too.  Just looked up the M743 module, and it 
is reference to the same.

They match blocks I have from PDP 11 though, not sure of the history of 
the PDP 14 at this point, maybe shared the hardware.
>
> https://i.imgur.com/86tcLFz.jpg
> https://i.imgur.com/BWiCz8l.jpg
>
> I came together with a similar sized PSU.
>
> Then there was a strange DEC workshop built paper tape reader. The reader
> mechanics looks similar to PC04 and PC05 but is smaller. The wheel is
> smaller and the stepper motor is smaller as well. Are these parts from some
> other DEC reader they cobbled together at DEC for inhouse duty.
>
> https://i.imgur.com/0zv55pP.jpg  << This looks a lot like the spine of a 1949 cage minus the sides.  With a few bits of stuff
> https://i.imgur.com/rE423Hi.jpg
> https://i.imgur.com/8th1y3Z.jpg
> https://i.imgur.com/VKoH2LX.jpg
Someone saved the bits and pieces of a reader from the looks of it w/o 
the front mounting plate.
> Any clues?
>
>