R405 module with green substrate and a red plastic extraction handle attached by two rivets. The side of handle reads "DIGITAL EQUIPMENT CORPORATION MAYNARD, MASSACHUSETTS" in raised letters. The reverse side of the substrate (with solder joints) reads "CRYSTAL CLOCK R405D" along the edge. The obverse side is covered by a variety of components. a black inspection stamp is located near the handle. A repeating "neLco" pattern in white print is visible on the substrate.
Date
1966 ca.
Manufacturer
Digital Equipment Corporation (DEC)
Place Manufactured
Maynard, Mass.
Identifying Numbers
Model number
R405
Located on handle
Other number
0.8kHz
Written in pencil on large, black component
Other number
3-65
Located on reverse side of substrate, top-right corner
