Title
Sense switch 1981A system building blockCatalog Number
102728229Type
Physical objectDescription
The object consists of 16 transistors arranged in neat rows among numerous capacitors and resistors on the component side. Many of the diodes leads have loops where they go through the circuit board. There are two barely visible quality control stamps on the component side.Date
1963 ca.Manufacturer
Digital Equipment Corporation (DEC)Place Manufactured
Maynard, Mass.Identifying Numbers
| Model number | 1981A | Etched in solder toward the insertion end of the board |
| Other number | 1981 | Engraved on the metal frame at the extraction end |
| Serial number | 0056022 | Engraved on the side of the metal frame toward the extraction end |
Dimensions
overall: 1/4 in x 4 1/2 in x 7 inCategory
Component/module
