East-German Mid-Century Mechanical Diagram

Akademie Der Pädagogischen Wissenschaften Der DDR / East-Germany

Soviet-Era, East-German Mid-Century mechanical 'Germanium Flat Rectifier' diagram from the 1960s. Manufactured by the Akademie Der Pädagogischen Wissenschaften Der DDR or Academy of Pedagogical Sciences of the GDR. These posters were commonly used in East German schools or classrooms during the postwar era. In original condition with age-appropriate signs of wear.