The RCA Selectron -- US Patent 2,519,172 Address Decode and Selection

George W. Brown, Radio Corporation of America
Applied: 30 August, 1946
Granted: 15 August, 1950

Topology of grid connections within the Selectron The '172 patent covers the memory tube decoding making use of the "all-of-four" gating structure for individual memory elements. '172 describes the internal connection topology of the selection grid electrodes to both implement partial decoding of the selection address, but also to minimize the number of electrical connections required to penetrate the glass envelope.

US Patent 2,519,172 images (OCR'd) 132 kB
US Patent 2,519,172 images (OCR'd) 132 kB

US Patent 2,519,172 text (OCR'd) 58 kB
US Patent 2,519,172 text (OCR'd) 58 kB


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