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Massa Corporation

Major collection: Hart Nautical
Named collection: Martin Klein Collection
Object type: technical literature
Maker: Massa Corporation
Place made: United States, Massachusetts, Hingham
Date made: 1973-1983
Measurements: 9 5/8 in x 11 3/4 in

Quotation, dated 12/2/1976; Credit Application; Contact Report; High Power Underwater Transducer Model TR-75A product data; Purchase order 4/7/1977 (2 copies); 2 Frequency charts; Letter to M. Klein from John Hubbard, Director of Technical Services, dated 9/2/1977 with performance data on TR-63 Type Transducer; "Technical Proposal for a Transducer for Use on Submarine Distress Pinger Equipment DSSP-23-10," 3/25/1968; TR-61 & TR-61A Transducer frequency graphs; Contact reports; Department of the Navy Calibration Report No. 2318, Massa AN/SQS-23 Transducer element type TR47 (2 copies); Directivity curves Transducer Model TR-75; Susceptance Plots TR-61A & TR-75; Oceanographic Transducers product data; Price List 12/1/1973; "Maker of Transducers Disputes Clain that Ceramic Shore Lived," by Frank Massa, National Fisherman July 1974; Domestic Sales Representatives; Ultrasonic Air Transducers product data; Quotation dated 3/8/1983; High-Power Underwater Transducer Model TR-61A product data; In oversize box: Letter to M. Klein from John Hubbard, dated 12/8/1976 with technical drawings of R-374 Transducer; Technical drawing labled Cover for TR-43; Outline of Transducer TR-63B; Housing Ass'y TR-47A; Outline drawing for TR-77A Transducer