1974

  

  
  
  

  
A first prototype of a peak level meter with digital controlled bargraph display in a panel-mount housing was presented in 1974 at Photokina in Cologne. Beginning 1975/76, the devices went into production typed 1.214, 1.215, 1.216, and 1.217 with different scale lenghts for vertical or horizontal mounting.
The image shows a horizontal version in a table-top housing.