German AA4 and AA 106 Mine Units Open PDF Document Details Document Type Technical Report Publication Date Sep 25, 1945 Accession Number ADA953447 Tags Communities of Interest Energy and Power Technologies Ground and Sea Platforms DTIC Thesaurus Topics Acoustic Signals Amplifiers Circuits Detonators Directional Electron Tubes Firing Circuits Full-Wave Rectifiers Lc Circuits Materials Prisoners Of War Rectifiers Resonant Frequency Switches Switching Thermistors Vertical Orientation