Unidentified IBM Module / Package

[Cory Heisterkamp]

> On Aug 1, 2021, at 8:28 AM, William Donzelli <wdonzelli at gmail.com> wrote:
> 
> I think those are IBM Q-Pacs, mil spec modules for the Informer computers.
> 
> --
> Will
> 
> On Sun, Aug 1, 2021 at 1:53 AM Cory Heisterkamp via cctalk
> <cctalk at classiccmp.org> wrote:
>> 
>> Does anyone recognize these IBM modules? My gut says late 50’s based on the transistor packages and font. Perhaps for a contract or military system? Thanks- Cory
>> 
>> https://www.dropbox.com/s/izitf1lmjqwcbuo/IBM1.jpg?dl=0
>> https://www.dropbox.com/s/dq8macaubrechkz/IBM2.jpg?dl=0

Thanks Will, it looks like you’re right on the money. Page 22 (in the scan) shows one definitively. http://bitsavers.org/pdf/ibm/4020/4020_Military_Computer_General_Info_Oct59.pdf