Title
Level Standardizer 1501 B System Building BlockCatalog Number
102728194Type
Physical objectDescription
Circuit board is comprised of several components including: resistors; transistors; capacitors; diodes. "1501" is stamped on metal frame.Date
1963 ca.Manufacturer
Digital Equipment Corporation (DEC)Identifying Numbers
Other number | 1501 | Stamped into front of metal frame. |