Artifact Details

Title

Vacuum tube type Z502S

Catalog Number

X1586.99A

Type

Physical object

Manufacturer

Amperex

Place Manufactured

U.K.

Identifying Numbers

Model number Z502S

Dimensions

overall: 1 1/4 in x 1 1/4 in x 3 5/8 in

Description

Dekatrons formed the first generation of integral vacuum tube counter tubes. The basic topology was invented by Ericsson for telecom applications (rotary dial sensing, for e.g.) and soon various tube manufacturers offered similar units. Typical applications: test equipment (frequency counters, digital voltmeters), and in computer systems.

Category

Component: vacuum tube

Credit

Gift of Eric Barbour

Lot Number

X1586.99A-G