In 1908, R.V. Lieben invented the Electronic Relais, a bulb in which an electric current could be modulated by a grid electrode. Soon the new principle was improved upon. During the second decade of the century, the process of developing electron tubes for radio transmitters and receivers was amazing. Twin and triple systems connected internally in one bulb were the beginning of integrated circuits, used in amplifiers and receivers. By improving the performance stability tubes, more complex electronics problems could be solved.

Author: Krause, Manfred
Affiliation: Institute of Communication Sciences, Technical University of Berlin, Berlin, Germany
AES Convention: 94 (March 1993) Paper Number: 3483
Publication Date: March 1, 1993 Import into BibTeX
Subject: Audio History and Technology
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=6660

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