Artifact Details

Title

MicroVAX I (original) Memory Controller (MCT)

Catalog Number

102728765

Type

Physical object

Date

1983 (DC)

Manufacturer

Digital Equipment Corporation (DEC)

Place Manufactured

U.S.

Identifying Numbers

Other number 12483 Printed on the green part in the middle on component side
Other number 94V340 Etched on the PC board at the vector board edge.
Other number EXP21-A Etched on the component side on the ribbon connector edge.
Other number EXP21-A Printed on the solder side on the vector board edge.

Dimensions

overall: 1 1/2 in x 16 7/8 in x 8 3/4 in

Description

This appears to be a quad size UniBus card with a dual connector 4607 type vector board screwed to the main printed circuit board. There are a large number of wire jumpers connecting the two boards together. The vector board is wire wrapped, the main board is soldered. There is a ribbon connector at the top of the main board and six edge connectors at the bottom of the board.. There are a large number of integrated circuits, including many PALs and PROMS. This module along with the data path (DAP) [X326.84] were the original breadboard modules for the MicroVAX I.

Category

Component: circuit board / module

Credit

Gift of David N. Cutler

Lot Number

X325.84