Neat. https://de.wikipedia.org/wiki/Siemens_2002 has some information
including a picture of a core module.
I wonder if this is the same machine I encountered at TU Eindhoven (Holland)
probably around 1969. It was in the ME department, the controller for a
precision plotter, I think originally designed to draw print masters for maps
and the like, by Contraves of Switzerland.
paul
> On Aug 25, 2026, at 12:30 PM, Julia Menden via cctalk <[email protected]>
> wrote:
>
> Dear ClassicCmp community,
>
> I am looking for a new home for a rather special piece of early German
> computer history:
>
> An original ferrite core memory module from a Siemens DVA 2002, dating from
> approximately 1961.
>
> The original accompanying label has survived with the module and identifies
> it as:
>
> ● Ferrite core memory from a DVA 2002
>
> ● Dating: circa 1961
>
> ● Memory capacity: 80 × 14 bits
>
> ● According to the contemporary description: approximately 840 characters
>
> ● The ferrite cores were threaded by hand
>
> The module appears to be in very nice and largely original condition. The
> core matrices, wiring and contacts are clearly visible, and the historical
> documentation accompanying it has also survived.
>
> The Siemens 2002 was one of the early transistorized computer systems
> produced in Germany and represents an important part of early Siemens
> computing history.
>
> There is also a personal connection to Siemens in my family: my father, Hans
> Sessler, was the head of a Siemens data center. The module comes from this
> family context and our connection to computing technology of that era.
>
> I am currently parting with a few special objects from my family collection
> for personal and financial reasons. However, with this particular piece, it
> is important to me that it goes to someone who understands and appreciates
> what it is – ideally a collector of early computers, a computer historian, a
> Siemens specialist, or simply a serious core-memory enthusiast.
>
> Therefore, I am inviting serious offers rather than setting a fixed price at
> this stage.
>
> I am located in Germany. International sale and carefully packed shipping can
> be discussed.
>
> I would be happy to provide detailed high-resolution photographs of the
> front, back, core matrices, connectors, labels and accompanying documentation
> to anyone seriously interested.
>
> I would also very much welcome any additional information from members who
> may be able to identify the exact configuration or historical context of this
> particular Siemens DVA 2002 memory module.
>
> Please feel free to contact me directly with an offer or further information.
>
> Best regards,
> Julia
>
>
>
>
>
> https://urnenwerk.com
> (+49) 151 20 76 66 22
>
> [email protected]
>
>
