On 01/17/2020 02:11 AM, William Maddox on CCTalk via cctalk
wrote:
The seller thinks this may be a drum memory, but it is
clearly not. My guess is that it is some kind of clock
generator. Anyone recognize this?
https://www.ebay.com/itm/Vintage-Mainframe-Computer-Part-Drum-Memory-Control-Data/312942951497
It looks kind of like a test fixture for an IC test system.
But, what is at the center really does not!
It seems like it has two similar circuit boards with 25
drivers that couple via 25 diodes (each) to
something at the center of the boards. Those diodes are
mil-spec, so that may be a clue.
The A1A2 marking is very typical of military subunits, too.
Jon
