MIL-S-3151A, MILITARY SPECIFICATION: SOUND-LEVEL MEASURING AND ANALYZING EQUIPMENT (15-AUG-1967) [NO S/S DOCUMENT]
MIL-S-3151A, MILITARY SPECIFICATION: SOUND-LEVEL MEASURING AND ANALYZING EQUIPMENT (15-AUG-1967) [NO S/S DOCUMENT]., This specification covers Sound-Level Measuring and Analyzing Equipment consisting of a Sound-Level Meter, an Octave-Band Analyzer and a Magnetic Tape Recorder. When used in conjunction this equipment forms a single type Sound-Level Measuring and Analyzing Syst
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