This artifact has a 17 in cylinder at the top which houses the drum. There is a large front panel. The lower half can be removed to reveal a card cage containing eleven (11) printed circuit cards. In the middle of the front panel there are four (4) status lights. At the rear there is a bottle of helium connected to a pressure regulator. There are several interface connectors at back.
Date
1969
Manufacturer
Hewlett-Packard Company (HP)
Place Manufactured
U.S.
Identifying Numbers
Model number
13415
Typed on DDC metal label located on left side of card cage. This is a model number for the magnetic memory drum.
Model number
13773
Typed on DDC metal label on right side of card cage. This is a model number for the read/write assembly.
Model number
2771A
On front panel on left hand side.
Model number
2771A Option #1
Printed on HP metal label located on back shelf.
Other number
Dec 17, 1968
This date is stamped in black ink on right side of card cage.
Other number
Drum rpm 3600
Typed on DDC metal label located on left side of card cage.
Other number
System serial no. 171B
Printed on HP metal label located on back shelf.
Part number
13770
Typed on DDC metal label located on front shelf.
Serial number
000-00002
Printed on HP metal label located on back shelf.
Serial number
3
Typed on DDC metal label located on front shelf.
Serial number
41
Typed on DDC metal label located on left side of card cage.
Dimensions
front panel:; overall: 22 3/8 in x 19 in x 20 1/2 in
