Robotron K1003 RPN made in GDR

[AndiGer]

Interesting thing I never heard before:

Today showed up a Robotron K1003 made in GDR on German ebay-Kleinanzeigen.
According to the description caught from http://rechentechnik.foerderverein-tsd.d...index.html it works on RPN with a 3 level stack. It also is programmable and has a built in card reader and a printer.
Function modules can be attached / inserted (if you have one :-).

The seller asks for biding.

Here is the link:
https://www.ebay-kleinanzeigen.de/s-anze...8-168-3567

[striegel]

(05-01-2018 12:25 PM)emersone12 Wrote:  Here is another East German manufactured scientific RPN calculator based on the Russian Elektronika B3-19M.
...

Cool photos, but which direction is the red arrow key supposed to point? One has it down and the other has it up.

Alan

[Zaphod]

(05-01-2018 05:46 PM)striegel Wrote:  Cool photos, but which direction is the red arrow key supposed to point? One has it down and the other has it up.

Alan

The both look up to me, albeit one is either dirty or worn down

[burkhard]

(05-01-2018 05:55 PM)Zaphod Wrote:  

(05-01-2018 05:46 PM)striegel Wrote:  Cool photos, but which direction is the red arrow key supposed to point? One has it down and the other has it up.

Alan

The both look up to me, albeit one is either dirty or worn down

I'm guessing that is the ENTER (or ENTER↑) key. I think Zaphod's right: the unit in the first picture has a lot of the key printing worn off. No double-shot molded keys!