It is a core memory plane! 4096 bits of Soviet memory via ebay. More photos (good excuse to get the macro lens out!) can be seen on Flickr:

Biochemist, mass spectrometry witch, caretaker for the nanoflow liquid chromatographs. Trans woman, lesbian. Recumbent cyclist. Wisconsin, USA
It is a core memory plane! 4096 bits of Soviet memory via ebay. More photos (good excuse to get the macro lens out!) can be seen on Flickr: