This is a B169 module with a green board and a blue plastic extraction handle, attached by two rivets. The module is marked by three inspection stamps. "W" is printed in red several times throught the board. "Inverter B 169B" is printed on the solder side.
Date
1966 ca.
Manufacturer
Digital Equipment Corporation (DEC)
Place Manufactured
Maynard, Mass.
Identifying Numbers
Model number
B169
Stamped in white on face of extraction handle
Other number
6-69
Printed in silver on reverse side of substrate parallel to left-hand edge