Martin Ohm [SEP] place of death
Martin Ohm
Martin Ohm (May 6, 1792, Erlangen – April 1, 1872, Berlin) was a German mathematician and a younger brother of physicist Georg Ohm.
Biography.
He earned his doctorate in 1811 at Friedrich-Alexander-University, Erlangen-Nuremberg where his advisor was Karl Christian von Langsdorf. In 1817, he was appointed professor of mathematics and physics in the gymnasium at Thorn. In 1821 he moved to Berlin, and in 1839 became a full professor in the University of Berlin. He
- 1985 Dec Cabinet: improved internal sealing and damping SN. 4825/6
- 1986 Apr Midrange units: harder rubber used for surround. SN. 4953/4
- 1987 Cabinet: Crossover moved to compartment in bottom of speaker. SN. 5575/6
- 1987 Sep Isobarik Sara 9 replaces Isobarik Sara
- 1988 Crossover: New 4 ohm external crossover fitted in stand. Facility for tri-wiring.
- 1988 "DMS" discontinued – "PMS" can be driven passively (4 ohm) or actively. SN.