Volya Saraga

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Wolja Saraga (born September 3, 1908 in Berlin ; † February 15, 1980 ) was a German physicist and lecturer at the Heinrich Hertz Institute for Vibration Research at the TH Berlin .

life and work

The son of a Romanian father and a Russian mother, of Jewish origin but without religious affiliations, studied telecommunications at the TH Berlin and physics and mathematics at the Humboldt University in Berlin , where he received his PhD in 1935. phil. in physics.

From 1929–1933 he was a research assistant and later a lecturer at the Heinrich Hertz Institute for Vibration Research at the TH Berlin. In 1931 he built the arc instrument Saraga generator here . It consisted of a photocell mounted in a white painted box onto which neon light was shone through a slit in one of the walls. Interruptions in the light beam caused the pitch to change. The envelope and timbre were manipulated by a handy device with switches, the volume was controlled by pedals. It was presented at the Berlin radio exhibition in 1932.

In 1933 he was dismissed as a Jew from the Heinrich Hertz Institute for Vibration Research and was only able to complete his dissertation in 1935 against resistance. His German citizenship was revoked and the Reichsschriftumskskammer forbade him to publish anything. Emigration proved to be difficult, Switzerland and the USA refused admission. In May 1938 he managed to emigrate to Great Britain, where he began the following year at the Telephone Manufacturing Company in Orpington , Kent. From 1944 he headed a network development group. He was also a part-time lecturer in network theory and mathematics at South-East London Technical College .

Publications

  • About DC equivalent circuits for AC problems . Ebering, Berlin 1936 (inaugural dissertation, Univ. Berlin, 1936.).
  • The Design of Wide-Band Phase Splitting Networks . In: Proceedings of the IRE . tape 38 , no. 7 , 1950, pp. 754-770 , doi : 10.1109 / JRPROC.1950.233434 .
  • An aerial analogue computer. An instantaneous radiation pattern tracer and degign apparatus for directional arrays . In: Journal of the British Institution of Radio Engineers . tape 13 , no. 4 , 1953, pp. 201-224 , doi : 10.1049 / jbire.1953.0026 (with D. T Hadley, F. Moss).
  • A design philosophy for microelectronic active-RC filters . In: Proceedings of the IEEE . tape 67 , no. 1 , 1979, p. 24-33 , doi : 10.1109 / PROC.1979.11198 (with D. Haigh, R. G Barker).

literature

  • J. O Scanlan: Dr. Volya Saraga . In: International Journal of Circuit Theory and Applications . tape 8 , no. 3 , 1980, p. 341 , doi : 10.1002 / cta.4490080315 .
  • A. Fettweis: Wolja Saraga (1908–1980) . In: Electronic Circuits and Systems, IEE Proceedings G . tape 128 , no. 4 , 1981, doi : 10.1049 / ip-g-1.1981.0060 .

Individual evidence

  1. ↑ a b Cristina Fischer, future with reservation. "From Berlin to London", in: Junge Welt , February 1, 2020, pp. 6–7 of the supplement.
  2. ↑ Volja Saraga . In: IEEE transactions on circuits and systems . tape 25 . IEEE Circuits and Systems Society, 1978, p. 1031 .
  3. ↑ Wolja Saraga: About DC equivalent circuits for AC problems . Ebering, Berlin 1936 (inaugural dissertation, Univ. Berlin, 1936.).
  4. ↑ The Saraga generator (1931) - Electronic Musical Instrument 1870-1990. Archived from the original on October 13, 2008 ; Retrieved August 22, 2011 .
personal data
SURNAME Saraga, Volya
BRIEF DESCRIPTION German physicist
DATE OF BIRTH September 3, 1908
PLACE OF BIRTH Berlin
DATE OF DEATH February 15, 1980