The RCA Selectron -- US Patent 2,558,460 Selectron Addressing

Jan A. Rajchman, Radio Corporation of America
Applied: 11 October, 1946
Granted: 26 June, 1951

Scanning topology for area Selectrons The '460 patent relates to use of the original 4096-bit memory tube which was intended for the Institute for Advanced Study digital computer. '460 describes the means of addressing or scanning the memory and/or display screen. It refers to George W. Brown's "all-of-four" gating logic which allows partial internal address decoding and the resultant need for fewer electrical connections.

US Patent 2,558,460 images (OCR'd) 889 kB
US Patent 2,558,460 images (OCR'd) 889 kB

US Patent 2,558,460 text (OCR'd) 118 kB
US Patent 2,558,460 text (OCR'd) 118 kB



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