• Country
• Germany

• Manufacturer / Brand
• Ontra - Werkstätten; Berlin

• Year
• 1936

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 144376

Click on the schematic thumbnail to request the schematic as a free document.

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit.

• from Radiomuseum.org
• Model: Revisor Prüfgerät - Ontra - Werkstätten; Berlin

• Shape
• Miscellaneous shapes - described under notes.

• Notes
• Fehler- und Störungsanzeiger, Spannungsprüfer. Laut Prospekt "Das weitverbreiteste Prüfgerät für Radioapparate".

• Price in first year of sale
• 7.00 RM

• Source of data
• - - Manufacturers Literature

• Author
• Model page created by Uwe Ronneberger. See "Data change" for further contributors.

• Other Models

• Here you find 31 models, 28 with images and 9 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ontra - Werkstätten; Berlin