CK501X (CK501X) Subminiature tube
ID: 148988
This article refers to the component: To the tube/semiconductor
CK501X (CK501X) Subminiature tube
13.Sep.07 13:48
1922
Developed in 1939 it was immediately used in numerous Hearing Aids.
Ruggedized varieties came into use for proximity fuses (AAA).
In 1945 subminiature tubes found application in the first vest pocket superhet Belmont Boulevard 5P113.
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