Unidentified peripheral in Tektronix PDP-11/20 system

[Bob Rosenbloom]

On 1/25/2020 5:46 PM, Steve Malikoff via cctalk wrote:
> I was idly browsing some old electronics magazines on archive.org and saw this
> Tektronix testing system from 1972 that clearly has an 11/20 and TU-56. Just curious
> as to what the piece of gear is sandwiched between the two. It sort of looks like a
> paper tape reader, but for the two white buttons or whatever they are at the lower right
> and the white bit at top right.
> It seems to be in a DEC bezel(?) It doesn't seem to match the bespoke Tek gear at right
> which looks quite different. I'm guessing it really is just a paper tape reader.
>
> http://www.surfacezero.com/g503/data/4173/Tektronix_S-3260_automated_test_system_PDP-11_20_Electronic_Design_23Nov1972_reduced.png
>
> Thanks in advance.
>
> Steve
>

The top right unit is a Tektronix branded Remex paper tape reader/punch, 
I have one.
The system is supposed to have a disk drive, possibly the middle unit is 
part of one?

Bob

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