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vladivladi
May 13th, 2017, 11:03 AM
Hello. I found this mouse in a pile of cables and I don`t know from what system it came from.
It looks to me they used quality plastic. No marking from the outside. There are marking from inside . I think the writing is in german ( not sure ).

Tried to search: the number of the white paper ( SM CC02 and UM 351 ), number of the board ( L130756/01 ): Nothing.

When searching number of the chip ( E600 38801 DSD431V7Y: ) one Polish website is found:
https://slawmir.com.pl/ukl-scalony-e600-38801-so28-p-1066026.html

Is the connector missing some part or maybe the mouse is connected directly to the controller card ?
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krebizfan
May 13th, 2017, 12:36 PM
Can you flip the circuit board over? Need more information to figure it out.

I have seen similar connectors for motherboard mouse and serial ports so my guess is that the mouse has the original connector removed and replaced with the motherboard 5-pin connector. That would save on placing a general purpose port on the computer's case.

See http://www.frontx.com/cpx109_2.html as an example. The picture uses a 10 pin connector but the second 5 pin row is ignored.

Looks too early to be USB mouse.

vladivladi
May 15th, 2017, 01:12 AM
Thank you for your reply. I am considering to measure the cables and to create custom connector plug to test the mouse.
By the look of the elements and the circuit board I can assume that the mouse is before 90`s, but I might be wrong.
Here is photo of the down side of the board.
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vladivladi
May 15th, 2017, 10:23 AM
I have checked all the listing in e-bay for vintage computer mouse. I have located couple of devices that have similarities to my mouse.

1. First one is this: The similarity is that on the bottom, the lid of the ball is the closed with screw.
http://www.ebay.com/itm/Vintage-Microsoft-Green-Eyed-Eye-Mouse-BUS-First-Version-1983-Steel-Ball-Heavy/262970565622?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%2 6asc%3D40130%26meid%3Db8213799097447dd8004d3041abd 00c0%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D2629 78844777

2. Second mouse: Here is the same. And the design is somewhat similar.
http://www.ebay.com/itm/Rare-Vintage-MOUSE-Metal-Ball-and-Metal-Bearings-for-Soviet-Computer-ES-1841-/182042858031?hash=item2a6299922f:g:V5IAAOSw42JZAzD F

3. Third mouse: This one is interesting because it has an unusual way to connect to the computer.
http://www.ebay.com/itm/Mouse-Art-software-Atari-9-pin-mouse-and-adapter-for-Tatung-Einstein-computer-/302295339096?hash=item466234d058:g:3FsAAOSw8gVYB-k3

Some conclusions that I make. Since I am from Bulgaria , eastern Europe ( Former soviet block country ). Maybe this mouse is from some sort of soviet XT clone.