This W501 module has a green board and a beige plastic extraction handle, which is held in place by two metal rivets. Between the rivets there are four round plastic inspection stamps. The words "FLIP CHIP" can also be read. On the solder side "SCHMITT TRIGGER W 501 F" is printed parallel to the left edge.
Date
1966 ca.
Manufacturer
Digital Equipment Corporation (DEC)
Place Manufactured
Maynard, Mass.
Identifying Numbers
Model number
W501
Printed in black on beige plastic extraction handle