Gould Datasys 700/800/900 series

[Willy V. (wilwin)]

Hello,

I was wondering that somebody could help me with a service manaul for 
the Gould Datasys 700/800/900 series ?
I love this scopes and have several of them : two 770 syncroscopes, a 
840 and a 944.
Problem are the varta bateries who leak in the years... They destroy the 
copper lanes around it.
i have only one good cpu board anymore at the moment ( they are all the 
same except the software in the 4 eproms).
I have tried to repair the boards, but thats very difficult, there are 4 
layers of tracks and not easy to follow the conections.
It would be a great help if i had the schematics. Maybe the 6000 and 
7000 series has the same cpu board, i dont know.
Im been searching for a long time on the net for this manuals but could 
not find them. Hopeless....
The 944 has also other problems ( i think it was the last scope from 
Gould Datasys).
The user manual for the 840 i have, but the only info here is to reset 
the scope ( powerup withe holdall button pressed until beep).
I even found accidently the service menu: press 4 times on the 1 button. 
you can do many test here, but it doesnt of course solve a hardware 
problem.
So if anyone can make me happy....
I would pay for the manuals if needed . ( for digitalising them...)

[Andreas Z. (andreas1000)]

Hi Willy,

have you had success in obtaining a service manual? A friend of mine is 
searching one for his 944, too.

[Markus L. (markus_l962)]

Hi,
I recently purchased a used Gould DataSYS 840. Unfortunately, I don't 
have the manual for it. If it's not too long, I was wondering if you 
could scan it and send it to me digitally? Thank you. Sincerely, Markus

[Christoph db1uq K. (christoph_kessler)]

ein paar Fundstellen:
https://retronic.ch/en/oscilloscopio-digitale/57-gould-datasys-770a-synchroscope.html
https://retronic.ch/en/oscilloscopio-digitale/59-gould-datasys-940-500-ms-s-350-mhz.html
https://www.eevblog.com/forum/testgear/gould-oscilloscope/
https://www.ko4bb.com/getsimple/index.php?id=manuals&dir=06_Misc_Test_Equipment/Gould
https://www.eserviceinfo.com/equipment_mfg/Gould_35.html
https://bama.edebris.com/manuals/gould/
https://www.manualslib.com/brand/gould/

[Christoph db1uq K. (christoph_kessler)]

https://retronic.ch/en/oscilloscopio-digitale/58-gould-datasys-840-10ms-s-150-mhz-12bit.html
nur ein paar Fotos und Daten zum Datasys 840.

Es gab/gibt mehrere Firmen die Gould hießen.

in Frankreich und Kanada?:
https://www.industriesgould.com/en/notre-histoire

in Deutschland "1961 als Elektrometall GmbH gegründet"
https://evertiq.de/news/9737

in USA
https://en.wikipedia.org/wiki/Gould_Electronics
https://www.company-histories.com/Gould-Electronics-Inc-Company-History.html

und einige mehr, der Name ist nicht sehr einzigartig.