Title
Read Write Switch 1990A System Building BlockCatalog Number
102629496Type
Physical objectDescription
There are two holes drilled into the front frame. Handwritten in red ink on the frame is, "SORTIE PHS."Date
1963 ca.Manufacturer
Digital Equipment Corporation (DEC)Identifying Numbers
Model number | 1990A |
Part number | 1990 |
Serial number | 0140861 |