Artifact Details

Title

Whirlwind 404 in-out delay counter flip-flop

Catalog Number

102733434

Type

Physical object

Date

1951

Identifying Numbers

Model number 404 Stamped into the black plastic label on the front
Other number 01868 Stamped on a white sticker on the front
Other number 02132 Stamped on a white sticker on the front.
Other number F9-6 Handwritten on a white sticker at the bottom.
Serial number 24 Stamped into the black plastic label on the front

Dimensions

overall: 8 1/2 in x 26 in x 11 1/2 in

Description

The module has nine vacuum tube connectors, five of which are populated. There are 17 coaxial connectos along the boarder of the module. There is a connector at one end. At the bottom there is a pair of red and white indicator lights, and a densly populated phenolic board with one delay line in the center. There is also a "Temporarily Modified" sticker on the phenolic board at the bottom.

Category

Component/module

Credit

Gift of Compaq Computer Corporation

Lot Number

X7422.2015