Radio age research, manufacturing, communications, broadcasting, television (1941)

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open House at Princeton The staff of RCA Laboratories was fiost to some 4,000 friends and neighbors at an open house at the David SarnofT Research Center in Princeton, N. J., on the eve- nings of May 5-7. These pictures present a gHmpse of some of the fifty different activities examined by the visitors. Dr. E. G. Linder explains transistor oscillator producing tone from light falling on silicon junction of type used in RCA Atomic Battery. Hl^ ri^BI John E. McCool, supervisor of glass room, demonstrates his art to an interested visitor. Young guest peers through microscope at an experimental RCA transistor. Robert Anderson shov/s device used tc chart path of electrons in a tube. Stanley Forgue explains cloud chamber for observing radioactive particle tracks. The magnetic memory is explained by its developer, Dr. J. A. Rajchman. Souvenir ashtrays were made for th< guests by William E. Carpenter.