Scientific Data Systems Cards

Jon Elson elson at
Thu Jan 16 22:30:57 CST 2020

On 01/16/2020 08:46 PM, Ryan Eisworth via cctalk wrote:
> Greetings all,
> I have a contact that has unearth a massive cache of Scientific Data Systems modules like the one pictured here in the Houston area: <>
> If anyone has a need for these modules or can identify based on that photo which SDS mainframe let me know and I'll put you in touch with the owner.
Wow, this is seriously old stuff, discrete transistors.  
Elco Varilock connectors.  That would date it to mid 1960's, 
I'd think.


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