Artifact Details

Title

Raytheon QK 329

Catalog Number

102672260

Type

Still image

Date

1997-05 ca.

Photographer

E. Barbour

Dimensions

overall: 5 in x 3 1/2 in

Description

Color image of a Raytheon QK329 tube. Verso: " Raytheon QK 329 square-law tube - used in early analog computers introduced in 1958 E. Barbour 8/97"

Category

Photograph

Lot Number

X7413.2015