[inforoots] Unknown IT Device from a collection in Switzerland

[Peter Eichenberger]

It looks like a disk head comb and actuator to me.
The "optical encoder" would be part of the feedback indicating
which cylinder the heads are on or passing over.
You can see two of the read-write heads in the lower photo
and one in the upper photo (white almost disks).
It looks like there were about 11 platters and 2 heads per surface
(except the last one).
That would come out to around 40 some tracks per cylinder.

-Peter Eichenberger

Hans Neukom wrote:

...
> Does anyone from this inforoots mailing list has any clue as to what 
> device the two attached fotos represent. I found it in a collection of 
> IT devices in a Swiss bank which used mainly Univac / Unisys equipment. 
> The inscription on top of the enclosed part talks about "optical 
> encoding", the other part can be moved into and out of the enclosed 
> part. The number on the chassis seems to read "2051418 REV F".
>  
> Thanky for any hint.
>  
> 
> Hans Neukom
> Schulhausstrasse 74
> CH8704 Herrliberg
> Switzerland
> 
> Tel. +41 44 915 04 48
> e-mail: hans.neukom at hispeed.ch