• Mass Spectrometer, Radio Frequency, Retirement Plaque, C. Y. Johnson
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    Assembly of hollow metal cylindrical grids and connecting posts enclosed in an open glass tube with a gauze screen at one end and connecting posts at other end; mounted on a walnut presentation plaque bearing engraved brass labels.

Created by

Smithsonian National Air and Space Museum

Date Created

03/08/2022

Source

Smithsonian National Air and Space Museum

Keywords

Instruments; Science; Space

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