LIFETIME AUTHENTICITY GUARANTEE WITHOUT TIME LIMIT
Description
WALTER BRATTAIN SIGNATURE, "Walter Brattain", on back of plain 3 x 5 postcard, postmarked Nov 7, 1972. Minor postal marks, otherwise in fine condition by co-recipient of the Nobel Prize for Physics for the discovery of the transistor.
Walter Houser Brattain (February 10, 1902 – October
13, 1987) was an American physicist at Bell Labs who, along with fellow scientists John
Bardeen and William
Shockley, invented the point-contact
transistor in December 1947. The
transistor is "the key enabler of modern electronics". The three
men received the Nobel Prize in Physics
in 1956 "for research on semiconductors and the discovery of the
transistor.
$95 #10610