Tung-Sol 5687 - halo getter

This 1959 Tung-Sol 5687 tube has a large halo getter and black plates with the bronzing characteristic of tubes of this type. The white print on the glass has the RCA logo (partial). Tube tests as new with low noise.

This 1960 military spec Tung-Sol 5687 tube has a halo getter and black plates with the bronzing characteristic of tubes of this type. The silver print has the Tung-Sol logo and reads "JTL-5687WA." Tube tests as new with balanced sections and low noise.