Report of Test on Sirens, Types S1-S2 and S3-S4
Abstract
The sample sirens were set up at this Laboratory in suitable test circuits where their performance was carefully observed for compliance with the requirements. An inspection of the samples, to determine compliance in the matter of materials, design and workmanship, concluded the test.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 14, 1939
- Accession Number
- AD1158451
Entities
People
- G. K. Sr Hardesty
- W. B. Roberts
Organizations
- United States Naval Research Laboratory