This B165 module has a green board and blue platic extraction handle, which is held in place by two metal rivets. On the component side there are three very faint inspection stamps. "DIODE INVERTER B165 2-70" is printedon the solder side.
Date
1966 ca.
Manufacturer
Digital Equipment Corporation (DEC)
Place Manufactured
Maynard, Mass.
Identifying Numbers
Model number
B165
Printed in white on face of blue extraction handle