AZ12 , RATRON , B4 BASE, GLOBE ENVELOPE

 AZ12 , RATRON , B4 BASE, GLOBE ENVELOPE

Now, a little more about the Ratron company: -

Ratron (from Ra-dio and elec-tron) was founded in Berlin in 1925, by the brothers Dr. Ing. Martin Paul William Richnow (Berlin, 22.7.1901) and the physicist Gerhard Julius August Richnow (Berlin 19.2.1899) to manufacture valves.

In 1938, the company was converted into a limited partnership by a limited liability company, the limited partner being Martin Richnow.  The Dutch division of Ratron was founded on 22 May 1942 in Beek (near Arnhem) in Straatweg b41. When the Allies arrived in Beek in 1945, the factory was empty, everything had already been taken to Germany.    After the resignation of Dr. Ing. Martin Richnow In 1958, Gerhard Richnow remained the sole shareholder.  Ratron closed its doors in 1968, this was also the year in which the last of the brothers, Gerhard, died.