Presentation of LSI ST-27 Sonar Transmitting System. Open PDF Document Details Document Type Technical Report Publication Date Jan 11, 1968 Accession Number ADA073428 Tags Communities of Interest Energy and Power Technologies DTIC Thesaurus Topics Alternators Amplifiers Control Systems Digital Information Energy Energy Storage Frequency High Energy Magnetic Amplifiers Power Supplies Reliability Saturable Reactors Sonar Storage Transducers Transmitters Transmitting